Question

220 people are asked how many siblings they have, and the results are shown below.# of SiblingsFrequencyRelative Frequency Cumulative Frequency0440.21550.25992450.204514430.1909186434220a. Complete the table (Use 4 decimal places when applicable),b. What percent of the people have exactly four siblings?%CalculatorScratchwork Area

Answer 1

SOLUTION:

Step 1:

In this question, we are given the following:

Step 2:

220 people are asked how many siblings they have, and the results are shown below:

# of siblings Frequency Relative Frequency Cumulative Frequency

0 44 0. 2 44

1 55 0.25 99

2 45 0.2045 144

3 42 0.1909 186

4 34 0.1545 220

The first box is 44 because 44 is the first number on the frequency

The second is 42 because 220 - (44+55+45+34) = 42

The third box is 0.1545 because (34/220 = 0.1545)

Step 3:

What percent of the people have exactly four siblings:

$\begin{gathered} \frac{34}{220}\text{ x }\frac{100}{1} \\ =\frac{3400}{220} \\ =\text{ }15.45\text{ \%} \end{gathered}$