Mathematics, 10.11.2020 07:20, izzythe5th
Mr. Jenning'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 25 feet and timing the fall. They calculated the summary below:
Mean Std Dev Min Q1 Median Q3 Max
4.2 secs 0.5 sec 2.6 secs 3.4 secs 4.0 secs 5.7 secs 6.8 secs
The students want to see what happens to their times when they drop the parachutes from 35 feet. They find that every drop is increased by 1.5 seconds. Find the new mean and standard deviation.
Mean, 2.7 seconds; standard deviation, 0.5 second
Mean, 4.2 seconds; standard deviation, 2 seconds
Mean, 5.7 seconds; standard deviation, 0.5 second
Mean, 4.2 seconds; standard deviation, −1 second
Answers: 2
Mathematics, 21.06.2019 18:20, rishiganesh
The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.
Answers: 3
Mathematics, 21.06.2019 18:40, TheLuciferOG4558
Acircle has a circumference of 28.36 units what is the diameter of the circle
Answers: 2
Mathematics, 21.06.2019 23:30, brendacauani12345
Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?
Answers: 2
Mr. Jenning's physics class built different-shaped parachutes to see which shapes were more effectiv...
Mathematics, 21.01.2021 22:40
Mathematics, 21.01.2021 22:40