Pls help asap!(this question is worth 20 points!)picture down below says question
...
Mathematics, 17.02.2021 01:00 lola5683
Pls help asap!(this question is worth 20 points!)picture down below says question
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 22.06.2019 00:30, sanfordl
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
Mathematics, 22.06.2019 03:30, lizzieee51
Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?
Answers: 1
You know the right answer?
Questions in other subjects:
Mathematics, 31.01.2020 19:57
Mathematics, 31.01.2020 19:57
Mathematics, 31.01.2020 19:57
