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. Limit Grouping is used for data. A) qualitative B) discrete C) continuous D) h

ID: 3040866 • Letter: #

Question

. Limit Grouping is used for data. A) qualitative B) discrete C) continuous D) historic either 8. The average height of freshmen entering college in a certain year is 60inches. Classify the data as A) Discrete or B) Continuous 9. The following data show the number of laps run by each participant ina marathon. Make a stem-and-leaf display 46 60 55 43 51 48 57 30 43 49 32 36 10. Calculate the mean and median of the following data set. Round your answer to the nearest tenth. 31 28 34 56 32 55 A. 39.3 and 32, respectively B.39.3 and 34, respectively C) 39.3 and 33, respectively D) Mean: 39.3; there is no median 11. A store manager counts the number of customers who make a purchase in as follows. 10 11 8 14 7 10 10 11 8 7 Make a dotplot for the given data

Explanation / Answer

7. Limit grouping is used for continuous data.

Correct option:

C) Continuous

For contuous variable, if we take a class for each distinct value of the variable, the number of classes becomes very large. So, in the case of continuous variable, we adopt limit grouping.

8.

Correct option:

(B) Continuous.

REASON: Height can take any vaue between the limits

9.

Stem               Leaf

3                     0 2   6

4                   3 3 6 8 9

5                   1 5 7

6                  0

10.

Mean = sum of values/Number of values

        = 236/6 = 39.3333

Median:

Arranging data in ascending order:

28,31,32,34,55,56

n = 6

Median is (n+1)/2th item.i.e., average of 3 & 4th item.

So,

median = 33

So,

correct option:

(C) 39.3 and 33 respectively

FIRST 4 QUEATIONS ARE ANSWERED AS PER DIRECTIONS FOR ANSWERING.