Question

The list below shows the quantity of items purchased by customers at a particular checkout counter of a supermarket. 13, 6, 5, 9, 12, 14, 18, 4, 13, 12, 4, 3, 11, 14 Create a histogram that correctly displays the data.

Answer 1

Answer:

A histogram is a bar-diagram which shows the frequency of certain data.

If we elaborate frequency table, it would be like

Number    Frequency

    3                   1

    4                   2

    5                   1

    6                   1

    9                   1

    11                   1

    12                  2

    13                  2

    14                  2

    18                  1

Where the total number is N = 14

Now, to graph this table as a histogram, we first need to label each axis. The horizontal axis will represent Numbers and the vertical axis will represent Frequency.

Then, the vertical axis will have marked number 1 and number 2. The horizontal axis will have mared numbers from 3 to 18, as the image attached shows.

After that, we will draw a bar, where each height will be the frequence. Refer to the image attached to see the histogram.

Answer 2

Answer:

The histogram can have four ranges.

Step-by-step explanation:

To make a histogram you need to separate the data in ranges and check how many values fall into each range. The number of values that fell in a range is going to be the height of the bar.

Arranging the values in increasing order:

3,4,4,5,6,9,11,12,12,13,13,14,14,18

The minimum value is 3 and the maximum is 18. If you make four ranges (you can choose the number of ranges): from 3 to below 7, from 7 to below 11, from 11 to below 15, from 15 to below 19.

The number of values that fall in each category is:

5 in the range from 3 to below 7 (3,4,4,5,6).

1 in the range from 7 to below 11 (9).

7 in the range from 11 to below 15 (11,12,12,13,13,14,14)

1 in the range from 15 to below 18 (18).

Use the values as heights to draw the histogram.