In a normal distribution, 99.7% of the data fall within how many standard
deviations of the mean?

A. Two standard deviations

B. One standard deviation
C. It cannot be determined from the given information.

D. Three standard deviations

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons