subject
Mathematics, 17.12.2020 16:00 heyheyheyhey3

On a test that has a normal distribution, a score of 55 falls two standard deviations above the mean, and a score of 30 falls three standard deviations below the mean. Determine the mean of this test.

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:00, anggar20
Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.
Answers: 1
image
Mathematics, 21.06.2019 19:10, jeanieb
What is the absolute value of the complex number -4-sqrt2i
Answers: 2
image
Mathematics, 21.06.2019 20:50, xbeatdroperzx
Ms. ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms. ortiz charge per kilogram of tomatoes to make on a load of tomatoes?
Answers: 2
image
Mathematics, 22.06.2019 02:30, 11091
In july, the average temperature in one us city was 29°c. by december, the average temperature had fallen by 29°c. explain why the average temperature in december was 0°c.
Answers: 3
You know the right answer?
On a test that has a normal distribution, a score of 55 falls two standard deviations above the mean...

Questions in other subjects:

Konu
Mathematics, 20.10.2020 04:01
Konu
Mathematics, 20.10.2020 04:01