Find the mean and standard deviation of the of data. round to the nearest tenth.
16, 21, 17, 22, 15, 10, 21
a. mean = 17.4;
standard deviation = 15.7
b. mean = 17;
standard deviation = 4
c. mean = 17:
standard deviation = 15.7
d mean = 17.4;
standard deviation = 4
select the best answer from the choices provided
0 a
ob
oc
d

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?