Mathematics, 19.12.2019 00:31 ritiguda

The distribution of the scores on a certain exam is n(3030,55), which means that the exam scores are normally distributed with a mean of 3030 and standard deviation of 55. a. sketch the curve and label, on the x-axis, the position of the mean, the mean plus or minus one standard deviation, the mean plus or minus two standard deviations, and the mean plus or minus three standard deviations. b. find the probability that a randomly selected score will be between 2020 and 4040. shade the region under the normal curve whose area corresponds to this probability.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:30, Yungnaudie

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0

Answers: 2

continue

Mathematics, 21.06.2019 15:00, arias333

Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)

Answers: 1

continue

Mathematics, 21.06.2019 17:30, tommyaberman

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Answers: 1

continue

Mathematics, 21.06.2019 18:40, erin5678

Which expression gives you the distance between the points (5,1)and(9,-6)

Answers: 2

continue

You know the right answer?

The distribution of the scores on a certain exam is n(3030,55), which means that the exam scores are...