Question

I need help with a question please 6sp the bottom one

Answer 1

To find the mean of a set of data, add the data then divide it by the number of the data

Since the set of numbers is

{1, 1, 4, 8, 9, 3, 8}

There are 7 numbers, sum them and divide the answer by 7 to find the mean

`\begin{gathered} \text{Mean}=\frac{1+1+4+8+9+3+8_{}}{7} \\ \text{Mean}=(34)/(7) \\ \text{Mean}=4.857142857 \end{gathered}`

Round it to the nearest tenth

Mean = 4.9

To find the median, arrange the data from smallest, then choose the middle one

to be the median

1, 1, 3, 4, 8, 8, 9

Since there are 7 numbers, then the middle one is the fourth number

Since the fourth number is 4

The median is 4

The range is the difference between the greatest and the smallest number

Since the greatest number is 9 and the smallest number is 1, then

The range = 9 - 1 = 8

The range is 8