Following data represents the speed of cars on an interstate. 49, 60, 61, 67, 68, 68, 68, 69, 69, 70, 70, 72, 74, 84, 85
(a) Make a stem plot with key.
(b) Find Q1, Q2, Q3 and IQR for the data.
(C) Find the lower and upper boundaries for the outliers.
(d) Identify outliers, if any.
(
4.
The following chart displays the temperature record of a city. Find the
SD in temperatures.
Temperature 18 19 20 21 22. 23 21
25.
26.