Hi , !
mrs. goodman’s physics class built different-shaped parachutes to see which shapes were more effective. the students tested the parachutes by dropping them from a height of 20 feet and timing the fall. they calculated the summary below:
mean: 4.6 seconds
standard deviation: 0.4 seconds
min: 2.3 seconds
q1: 3.1 seconds
median: 4.2 seconds
q3: 5.5 seconds
max: 6.4 seconds
the students want to see what happens to their times when they drop the parachutes from 32 feet. they find that the time of every drop is increased by 2 seconds. find the new mean and standard deviation.
a.) mean, 6.6 seconds, standard deviation; 0.4 second
b.) mean, 2.6 seconds, standard deviation; 0.4 second
c.) mean, 6.6 seconds, standard deviation; 2.4 seconds
d.) mean,4.6 seconds; standard deviation, 2.4 seconds