Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi. The standard deviation of this sample is most nearly:

Answers

Answer 1

Answer:

The standard deviation of this sample is 7.438

Explanation:

We are given that Strength tests on four batches of concrete show them to fail at 81, 78, 86, and 95 ksi.

Data: 81, 78, 86, and 95

We are supposed to find standard deviation of this sample

Formula :[tex]\sqrt{\frac{(x-\bar{x})^2}{n-1}}[/tex]

n = 4

[tex]\bar x=\frac{81+78+86+95}{4}=85[/tex]

Substitute the values in the formula :

Standard deviation=[tex]\sqrt{\frac{(81-85)^2+(78-85)^2+(86-85)^2+(95-85)^2}{4-1}}[/tex]

Standard deviation=7.438

Hence The standard deviation of this sample is 7.438


Related Questions

Traditionally, the term _______ was applied to a vehicle with no permanent roof covering or side windows, but today that name is most often used to describe any convertible sports car.
Group of answer choices

Convertible

Coupe

Roadster

Sedan

Answers

The correct answer is “convertible”

If cancer runs in your family, what will your doctor likely do?

Answers

Answer:

Your doctor will most likely treat your family.

Explanation:

which STD/STI can cause genital warts and cervical cancer A. Syphilis B. HPV C. Gonorrhea D. HIV/AIDS

Answers

Answer:

Hpv

Explanation:

Hpv can cause warts and cervical cancer. its the most common viral infection

Answer:

B. HPV

Explanation:

Genital warts a sexually transmitted infection (STI) caused by certain low-risk strains of the human papillomavirus (HPV). These are different from the high-risk strains that can lead to cervical dysplasia and cancer. HPV is the most common of all STIs.

Patients receive injectable medications when they're incapable of taking oral medications or when

Answers

Answer:

they have an illness such as diabetes

A home health nurse who sees a client with diverticulitis is evaluating teaching about dietary modifications necessary to prevent future episodes. Which statement by the client indicates effective teaching

Answers

Answer:

"I should increase my intake of fresh fruits and vegetables during remission"

Explanation:

Diverticulitis is an inflammation or infection in one or more small pouches in the digestive tract. After the nurses' teachings a statement that would indicate this would be "I should increase my intake of fresh fruits and vegetables during remission". This is because, even though doctors say that patients with diverticulitis should avoid high fiber diets, when in remission eating lots of fresh fruits and vegetables is known to prevent acute diverticulitis.

Carafate 1 g p.o.
Identify the component missing in the order.

Answers

Answer: Frequency

Explanation:

Without frequency ex once daily; every 4 hrs, etc. You don't know when to give the med

When clamping the umbilical cord, the clamp closest to the baby should be approximately ________ inch(es) from the infant's body.

Answers

Answer:

The correct answer is - 7 to 10 inches.

Explanation:

The infant and placenta of the mother is connected with the umbilical cord which is need to be cut to separate the infant from placenta. Umbilical cord carries important nutrients and blood to the infant from the mother.

Clamping the umbilical cord is oldest technique which is necessary to separate the baby from the placenta. The closest clamp should be approximately 7 inches to maximum of 10 inches to the body of infant.

Thus, the correct answer is - 7 to 10 inches.

The content of total body water in in adult women is *

Answers

Answer:

The content of total body water in adult women is on average 52-55 percent water.

Explanation:

The content of total body water can vary on many factors, including age, health, water intake, weight, and sex.

Answer:

if we talkin knowledge it would be bellow the iq of 16

Explanation:

Kevin has a BMI of 28.5. How many calories should he eliminate from his diet every day to achieve weight loss? a. 600 calories b. 400 calories c. 100 calories d. 200 calories e. 300 calories

Answers

Answer:

A

Explanation:

A BMI of 28.5 for a male shows that he is overweight. Cutting down calories significantly can promote weight loss by 1-2 pounds each week.

Kevin has a BMI of 28.5.600 calories should he eliminate from his diet every day to achieve weight loss.

What is BMI ?

Body mass index (BMI) can be define as the  calculation that is  used in healthcare settings which is an indirect method to determine a person's body weight category.

BMI is a measurement can take the data of height, and weight to produce a calculation and this calculation  determine the relationship between weight and height.

The reason BMI is used  for the correlation between being overweight and having certain health problems, Coronary heart disease, Hypertension, Osteoarthritis, Sleep apnea and respiratory problems

For more details regarding BMI, visit

https://brainly.com/question/11450847

#SPJ2

2. Most office supplies are purchased through a
O mediator.
O seller.
O vendor.
O retailer.

Answers

Answer:

retailer.

Explanation:

hope it's helpful

Other Questions
if a 1-m diameter sewer pipe is flowing at a depth of 0.4 m and has a flow rate of 0.15 m^3/s, what will be the flow rate when the pipe flows full? This morning, Jeff found an aged bond certificate lying on the street. He picked it up and noticed that it was a 50-year bond that matured today. He presented the bond to the bank teller at his local bank and received payment for both the entire principal and the final interest payment.The bond that Jeff found must have been which one of the following?a. Debentureb. Callable bondc. Registered-form bondd. Note Bearer-form bond Why might Northern Italy have been a good place for the Renaissance to begin? its central location in Europe its location in Asia its proximity to the Mediterranean Sea its small size compared to other countries A 1.00-kg glider attached to a spring with a force constant 25.0 N/m oscillates on a frictionless, horizontal air track. At t = 0, the glider is released from rest at x = -2.80 cm (that is, the spring is compressed by 2.80 cm). (a) Find the period of the glider's motion. How does the period depend on the mass and the spring constant? Does it depend on the amplitude of oscillation? s (b) Find the maximum values of its speed and acceleration. speed m/s acceleration m/s2 (c) Find the position, velocity, and acceleration as functions of time. (Where position is in m, velocity is in m/s, acceleration is in m/s2, and t is in s. Use the following as necessary: t.) x(t) = v(t) = a(t) = Solve the equation (If possible please show work) The pOH of a solution is 3.1. Which of the following is true about the solution? (1 point) It is acidic and has a pH of 10.9. It is basic and has a pH of 10.9. It is acidic and has a pH of 6.2. It is basic and has a pH of 6.2. The American Revolution wasA-War of Independence fought between France and the American colonists in anattempt to break free from oppressive ruleB - was fought between the American colonists and Great Britain in an attempt to breakfree from oppressive ruleC - is an event that does not really have any impact on our livesD - none of the above "In the long-run, monopolistically competitive firms: have excess capacity. produce at the minimum of average total cost. charge prices equal to marginal cost. both B and C are true." How is listening connected with critical thinking whats suface tension A stone is dropped from the bridge, it takes 4s to reach the water. what's the height of the bridge? [The following information applies to the questions displayed below.] Allied Merchandisers was organized on May 1. Macy Co. is a major customer (buyer) of Allied (seller) products. May 3 Allied made its first and only purchase of inventory for the period on May 3 for 2,000 units at a price of $10 cash per unit (for a total cost of $20,000). 5 Allied sold 1,500 of the units in inventory for $14 per unit (invoice total: $21,000) to Macy Co. under credit terms 2/10, n/60. The goods cost Allied $15,000. 7 Macy returns 125 units because they did not fit the customers needs (invoice amount: $1,750). Allied restores the units, which cost $1,250, to its inventory. 8 Macy discovers that 200 units are scuffed but are still of use and, therefore, keeps the units. Allied sends Macy a credit memorandum for $300 toward the original invoice amount to compensate for the damage. 15 Allied receives payment from Macy for the amount owed on the May 5 purchase; payment is net of returns, allowances, and any cash discount. Prepare journal entries to record the following transactions for Allied assuming it uses a perpetual inventory system and the gross method. (Allied estimates returns using an adjusting entry at each year-end.) Suppose the population of a country is 100 people: 40 work full-time, 20 work half-time but would prefer to work full-time, 10 are looking for a job, 10 would like to work but are so discouraged they have given up looking, 10 are not interested in working because they are full-time students, and 10 are retired. What is the number of unemployed Suppose when a monopolist produces 50 units its average revenue is $8 per unit, its marginal revenue is $4 per unit, its marginal cost is $4 per unit, and its average total cost is $3 per unit. What can we conclude about this monopolist? a. The monopolist is currently maximizing profits, and its total profits are $200. b. The monopolist is currently maximizing profits, and its total profits are $250. c. The monopolist is not currently maximizing its profits; it should produce more units and charge a lower price to maximize profit. d. The monopolist is not currently maximizing its profits; it should produce fewer units and charger a higher price to maximize profit. The term Heart broken Angel refers to what? One of the solutions of the system of equations shown in the graph has an x-value of -4. What is its corresponding integer y-value? -1 -3 0 3 A student wrote the following equation and solution. Explain the error and correctly solve the equation: p = 9/16 p = 3/4 kassiis253 01/23/2019 Health Middle School +5 pts Answered Which are entrepreneurial jobs in the nutrition and wellness field? A.) catering B.) universities C.) government agencies D.) national gorcery store chain E.) sports trainer for the Olympics PLEASE HELP TO BE MARKED THE BRAINLIEST How is genetic information preserved during the copying of DNA? View Available Hint(s) Hint 1.opened hint How is genetic information preserved during the copying of DNA? The information is preserved because DNA codes for RNA, which codes for protein. Genetic information is preserved in the linear sequence of the building blocks A, T, G, and C. Genetic information is preserved by base pairing between A and T and between G and C across the two strands of the double helix. The information in DNA is copied into RNA, which is used as a template to copy back to DNA.