Question: A normal distribution has M = 80 and = 10 what is the probability of randomly selecting the following scores (8 Marks) a) x>75 b)

A normal distribution has M = 80 and = 10 what is the probability of randomly selecting the following scores (8 Marks)

a) x>75

b) x>85

c) x<90

d) x < 60

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

Part ONE ____ 1. A class consists of 10 males and 30 females. If one student is randomly selected from the class, what is the probability of selecting a male? a. 10/30 b. 10/40 ____ c. 1/10 d. 1/40...

Q:

What proportion of a normal distribution is located between z= -1.25 and z=+1.25? What proportion of a normal distribution is located between z=-1.50 and z= +1.50 What is the probability of randomly...

Q:

1. In an introductory psychology class with n=50 students, there are 9 freshman males, 15 freshman females, 8 sophomore males, 12 sophomore females and 6 junior females. A random sample of n=2...

Q:

xxcgvb Question 8 A survey was conducted to measure the number of hours per week adults in the United States spend on their computers. In the survey. the numbers of hours were normally distributed,...

Q:

I am using Excel to enter the formulas, please advise with what I am doing wrong A. What is the probability of randomly selecting a value below 250, in a normal distribution with a mean of 200 and a...

Q:

Answer Q Search A. 2.7% B. 83 4% 3. Some IQ tests are standardized to a Normal Distribution model. One specific @ test is said to hay C. 97 3% mean of 100 and a standard deviation of 15 D. 99 4%%...

Q:

1.The mean amount spent by a family on food per month is $600 with a standard deviation of $75.Assuming that the food costs are normally distributed, what is the probability that a family spends more...

Q:

D Question 10 1 pts A normal distribution has u = 80 and o = 10. What is the probability of randomly selecting a score greater than 90 from this distribution? (Hint: You'll need to use the Standard...

Q:

Assume the random variable x is normally distributed with mean u = 50 and standard deviation 6 = 7. Find the indicated probability. P(x > 38) P(x > 38) = D (Round to four decimal places as needed.)...

Q:

A sample of n = 16 scores is selected from a population withm= 80 withs= 20. On average, how much error would be expected between the sample mean and the population mean? 20 points 5 points 4 points...

Q:

In "The Libation Bearers," Orestes kills his mother, Queen Clytemnestra, to avenge the death of his father King Agamemnon. In "Eumenides," Orestes is put on trial for this killing in an attempt to...

Q:

Our client, Superior Foods Grocery Store, is being sued for negligence by Ilene Kincaid. Kincaid went to the store to purchase groceries on October 30, 2022. While she was in the produce section, she...

Q:

Which of the following is not apart of the direct materials purchased budget

Q:

which of the following statements about the fund balance are not true? it is the net resources of a fund, it is unique to the governmental funds, it is calculated as the difference between assets and...

Q:

2. In this chapter, the reader should reflect on the following concepts: Basic values, basic interests, position, socialization process, mental variables and norm distribution.

Q:

6. List examples from your local environment of people that have a so-called Protestant character. Add further characteristics to this phenomenon than those mentioned in this chapter.

Q:

10. Choose someone you know and answer the following questions: a) Does this person have a low or high level of competence in a particular field? b) Do you have a low or high level of confidence in...