finding the mean\nthe national average height for girls in the sixth grade is also 52 inches. find the…

finding the mean\nthe national average height for girls in the sixth grade is also 52 inches. find the average height of the girls in this class.\nthe total number of girls is.\nthe total height of the girls is inches.\nthe expression to find the mean is.\nthe average height of the girls in this class is inches.\n|number of girls|height in inches|total height|\n|----|----|----|\n|2|51|102|\n|8|52|416|\n|0|53|0|\n|4|54|216|\n|totals| | |

finding the mean\nthe national average height for girls in the sixth grade is also 52 inches. find the average height of the girls in this class.\nthe total number of girls is.\nthe total height of the girls is inches.\nthe expression to find the mean is.\nthe average height of the girls in this class is inches.\n|number of girls|height in inches|total height|\n|----|----|----|\n|2|51|102|\n|8|52|416|\n|0|53|0|\n|4|54|216|\n|totals| | |

Answer

Explanation:

Step1: Calculate total number of girls

$2 + 8+0 + 4=14$

Step2: Calculate total height of girls

$102+416 + 0+216 = 734$

Step3: Write expression for mean

The mean $\bar{x}=\frac{\text{Total height}}{\text{Total number of girls}}=\frac{734}{14}$

Step4: Calculate the mean

$\frac{734}{14}\approx52.43$

Answer:

The total number of girls is 14. The total height of the girls is 734 inches. The expression to find the mean is $\frac{734}{14}$. The average height of the girls in this class is approximately 52.43 inches.