Mr. karly's math test scores are normally distributed with a mean score of 87 and a standard deviation of 4 using the empirical rule, about 99.7% of the data values lie between which two values?

The rule says about 99.7% of a normal distribution lies within 3 standard deviations of the mean. Here the mean is 87. 3 standard deviations above the mean represents a score of 87 + 3*4 = 99, while 3 standard deviations below the mean represents a score of 87 - 3*4 = 75.

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi