Ms. Rogers asked 15 piano students how many hours of practice they put in each week. The list shows the data she recorded. 6,6,7,7,7,8,8,8,8,8,9,9,9,10,10

Which statement is true?

A. The data is skewed to the left.
B. The data is skewed to the right.
C. The data is symmetrical.
D. The skew of the data cannot be determined.

D

Step-by-step explanation:

A student that goes to class can not put 10 hours of practice per day.

a

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %