Aset of data has a normal distribution with a mean of 49 and a standard deviation of 8. find the percent of data within the following interval. from 33 to 65.

95 percent

Step-by-step explanation:

The empirical rule states that approximately 95% of observations will fall within 2 standard deviations of the mean if the population is approximately symmetrical(normal) in distribution.

The interval from 33 to 65 falls within 2 standard deviations of the mean;

49-2(8) = 33

49+2(8) = 65

Thus, 95 percent  of data will fall within the interval from 33 to 65

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

1 and 0

step-by-step explanation: