Mathematics, 18.05.2020 22:58 Mochalav6675
You have a normal distribution of hours per week that music students practice. The mean of the values is 8 and the standard deviation of the values is 4.
According to the normal distribution, 50% of the music students practice between 5.3 to 10.7 hours each week.
What percentage of students study less than 5.3 hours each week?
A. 12.5%
B. 20%
C. 50%
D. 25%
A step by step explanation would be highly appreciated.
Answers: 3
Mathematics, 21.06.2019 16:30
Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.
Answers: 3
Mathematics, 21.06.2019 20:30
Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?
Answers: 1
Mathematics, 21.06.2019 22:30
Solve for x. β3/4(x+2)=6 enter your answer in the box
Answers: 1
Mathematics, 22.06.2019 03:20
Hilary decided to purchase 3 points in order to lower her interest rate on her $140,000 mortgage. how much additional money does she need to bring to closing? a. $4200 b. $4000 c. $6 d. $400
Answers: 1
You have a normal distribution of hours per week that music students practice. The mean of the value...
Social Studies, 23.01.2021 07:40
Spanish, 23.01.2021 07:40
Biology, 23.01.2021 07:40
Biology, 23.01.2021 07:40
Mathematics, 23.01.2021 07:40
History, 23.01.2021 07:40
Mathematics, 23.01.2021 07:40
Mathematics, 23.01.2021 07:40
Computers and Technology, 23.01.2021 07:40
Computers and Technology, 23.01.2021 07:40
Mathematics, 23.01.2021 07:40
English, 23.01.2021 07:40
English, 23.01.2021 07:40