Question

A table titled Number of Dogs Adopted has entries 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9. The total is 132.

A shelter kept track of the number of dogs adopted each day for three weeks. Use the table to find the statistical measures. need mean, median, mode and range.

Answer 1

Explanation:

got it right on Edge

Answer 2

1) Mean = 6.28

2) Median = 7

3) Mode = 8

4) Range = 6

Explanation:

We need to find Mean, Median, Mode and Range of data given in tables.

1) Mean

The formula used to calculate mean is:
`Mean=(Sum\:of\:all\:data\:points)/(Number\:of\:data\:points)`

The data given is: 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9

Sum of all data points = 132

Number of data points = 21

Finding mean:

`Mean=(Sum\:of\:all\:data\:points)/(Number\:of\:data\:points)\\Mean=(132)/(21)\\Mean=6.28`

So, Mean = 6.28

2) Median

The formula used to calculate median is:
`Median=(n+1)/(2)\:th\: term` because we have n = odd

Number of data points n = 21

Putting values and finding the position of median term

`Median=(n+1)/(2)\:th\: term\\Median=(21+1)/(2)\:th\: term\\Median=(22)/(2)\:th\: term\\Median=11\:th\:term`

So, in the given data : 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9

The 11 th term is 7

So, Median = 7

3) Mode

The mode is the most repetitive value of data set.

In the given data set: 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9

The most repetitive value is 8

So, Mode = 8

4) Range

The range can be calculated using formula:
`Range=Maximum\:Value-Minimum\:Value`

In the given data set: 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9

Maximum value = 9

Minimum value = 3

So, the range is:

`Range=Maximum\:Value-Minimum\:Value\\Range=9-3\\Range =6`

So, Range = 6