The mean speed of a sample of vehicles along a stretch of highway is 69
miles per hour, with a standard deviation of 4
miles per hour. estimate the percent of vehicles whose speeds are between 65
miles per hour and 73
miles per hour. (assume the data set has a bell-shaped distribution.)
approximately nothing
%
of vehicles travel between 65
miles per hour and 73
miles per hour.

step-by-step explanation:

their are no angles. sorry cant .

salary

step-by-step explanation:

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.