find the mean of the data in the dot plot below. vitamins vitamins onurs mom took each day number of vitamins

Explanation:

Step1: Count data - points and values

There are 2 points at 1, 1 point at 3, 1 point at 5, and 1 point at 9.

Step2: Calculate sum of data - values

Sum = (2\times1 + 1\times3+1\times5 + 1\times9=2 + 3+5 + 9 = 19).

Step3: Calculate number of data - points

Number of data - points (n=2 + 1+1 + 1=5).

Step4: Calculate the mean

Mean (\bar{x}=\frac{19}{5}=3.8).

Answer:

3.8