Question 1 of 14 Mr. Jackson is ordering kazoos for his second, third, and fourth grade music classes. The kazoos come in boxes of 8. There are 26 second graders, 24 third graders, and 30 fourth graders. Which expression represents how many boxes of kazoos Mr. Jackson needs to order so that every student receives a kazoo?

A.
(
26
×
24
×
30
)
+
8
B.
(
26
+
24
+
30
)
×
8
C.
(
26
+
24
+
30
)
÷
8
D.
(
26
×
24
×
30
)
÷
8

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Measure of angles 31 (x+4) (3x+9) me

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.