Question

ssignment mes following is the number of times it was used during each of the last 30 days. Develop a stem-and-leaf chart. Summarize the data on the utomatic teller was used: How many times was the teller used on a typical day? What were the largest and the smallest number of times the teller was used? Around what values did the number of times the teller was used tend to cluster? 76 54 75 59 70 83 63 80 84 73 68 52 65 90 52 77 95 36 78 61 59 95 47 8760 224 9 9 0 1 1 3 4 5 8 0 3 5 6 78 0 55 In a typical day the ATM is typically used between-times, smallest was. largest was

Answer 1

The first two leaves in the stem and leaf plot is :

Stem Leaves

3 : 6

4 : 7

Here,

number of observations = 30

To find first quartile,

th observation in the data set, i.e. average of 7^th and 8^th value in the sorted data set will be value of Q₁

So,

To find third quartile,

th observation in the data set, i.e. average of 22^th and 23^th value in the sorted data set will be value of Q₃

So,

In a typical day, the ATM is typically used between 59 and 84, smallest was 36 and largest was 95