Minimum: 9 days q1: 18 days median: 21 days q3: 28 days maximum: 56 days if we use the 1.5 * iqr rule to determine whether there are any outliers, what is the right boundary?

To find the right boundary, we have to add 1.5 times the IQR to Q3.

... Q3 + 1.5(Q3 -Q1) = 28 + 1.5(28 -18) = 28 +15 = 43

The right boundary is 43.

Upper limit for boundary will be 43. (right side)

Lower limit or boundary will be 3. (left side)

Step-by-step explanation:

Given Five number summary:

Minimum: 9 days

: 18 days

Median: 21 days

: 28 days

Maximum: 56

Then IQR=

According to the 1.5 * IQR rule , the upper and lower limit for the boundary without outlier is given by :-

Upper limit=

Lower limit=

For the given situation,

Upper limit=

Lower limit=

ANSWER

C.

EXPLANATION

If Lamar uses 39 baseballs in 15 minutes, then he will use 4×39=156 balls in 60 minutes.

This implies that, Lamar uses 156 baseballs in an hour.

The total number of balls in the bucket is 260.

In an hour, the fraction of the baseballs in the bucket will be:

The correct choice is C.