B. false
3. A certain group of students study two and half hours per week with a standard
devi...
Mathematics, 12.08.2020 07:01 bananaslada
B. false
3. A certain group of students study two and half hours per week with a standard
deviation of half an hour. If a random sample of 25 students is taken, what is the
probability they studied less than 2.25 hours. Let X = the number of hours a
student studied.
a. (1 pt) Provide the formula for calculating the Z-score
b. (2 pts - Show your work) Calculate the Z-score
C. (1 pt) State the probability mathematically.
d. (1 pt) State the Excel function you will use to calculate the probability.
e. (2 pts) Use your calculated z-score to find the probability,
Answers: 2
Another question on Mathematics
Mathematics, 22.06.2019 00:30
The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?
Answers: 3
Mathematics, 22.06.2019 00:30
Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16
Answers: 3
Mathematics, 22.06.2019 03:30
⦁plzzz me asap worth 30 points. part b: find the area of just the wood portion of the frame. this is called a composite figure. explain and show your work.
Answers: 2
You know the right answer?
Questions
History, 13.10.2019 15:30
Mathematics, 13.10.2019 15:30
Mathematics, 13.10.2019 15:30
History, 13.10.2019 15:30
Mathematics, 13.10.2019 15:30
Chemistry, 13.10.2019 15:30
Spanish, 13.10.2019 15:30
Chemistry, 13.10.2019 15:30
Physics, 13.10.2019 15:30
