A student takes a multiple choice test that has 10 questions. Each question has four choices. The student guesses randomly at each answer. Let X be the number of questions answered correctly. Round the answer to atleast four decimal places P(5) ? 2. P( more than 3) ?

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A: We have given that

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Q: Which of the following two variables are both quantitative and continuous? 1. The amount of water in…

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A: Solution Given data is

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.7…

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Q: 19. Mrs. Cruz gives a multiple-choice item in the summative test in Mathematics. The scores of the…

A: Solution: Class Class Boundries Frequencyf cf 21 - 25 20.5 - 25.5 61 61 26 -…

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Q: For a population with mean 229.19 and standard deviation 32.63, what is the value of the standard…

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Q: population mean e. population variance f. population standard deviation. F

A: Here given , Population {2.1 , 3 3 , 7.6 , 8.5} There are 4 elements in Population  N = 4

Q: 4a) It is known that P(AB)-0.45, P(B)-0.90 and the events A and B are independent. Find P(A). 0.405…

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Q: y 74.6 71.1 57.9 49.0 74.6 73.0 68.0 59.8 57.3 48.6 y = USE SALT (a) Obtain the equation of the…

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Q: How to find 20th, 25th, 65th, and 75th, percentiles for data value of 15, 21, 24, 24, 27, 28, 30,…

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Q: Suppose Z follows the standard normal distribution. Use a calculator or table, to determine the…

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Q: A project should generally be rejected IF: a. NPV 0 Clear my choice

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Q: A data set is given below.   ​(a) Draw a scatter diagram. Comment on the type of relation that…

A: Given data: x 1 1 3 5 6 6 y 5.4 6.8 5.8 3.6 2.8 3.1

Q: rvey h

A: To explain the correct option as,

Q: 90 cm

A: Given as,

Q: The distribution of the heights (in inches) of 18-year-old U.S. females has first quartile Q₁ =…

A: The provided information is Q1=62Q3=66Then Inter Quartile Range is IQR=Q3-Q1IQR=66-62=4The outlier…

Q: John's answering machine receives about 15 telephone calls between 8:00 am and 10:00 am What is the…

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Q: Imagine that there are only two points in a scatterplot. 7. How do you position these points so that…

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Q: P(Z ≤ 0.77) = P(Z > 1.36) = P(-0.70 < Z < 2.06) =

A: From the provided information And using standard normal distribution table…

Q: A portfolio manager has positions that include a £100,000 investment in A Corp and a £75,000…

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Q: IfX~N(7,4), the P(15.364 ≤ (X-7)² ≤ 20.095) is

A: Given problem is :