subject
Mathematics, 30.08.2019 13:00 minmaddiee

The scores on a test given to all juniors in a school district are normally distributed with a mean of 72 and a standard deviation of 6. find the probability that a randomly chosen junior has a score above 90. the probability of randomly choosing a junior whose score is above 90 %.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 14:50
Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3
Answers: 1
question
Mathematics, 21.06.2019 18:30
Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)
Answers: 1
question
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
question
Mathematics, 21.06.2019 21:10
See attachment below and find the equivalent of tan(∠qsr)
Answers: 3
You know the right answer?
The scores on a test given to all juniors in a school district are normally distributed with a mean...
Questions
question
English, 21.11.2020 23:50
question
Mathematics, 21.11.2020 23:50
question
Mathematics, 21.11.2020 23:50
question
Mathematics, 21.11.2020 23:50