A train going 25 m/s slows down to rest after decelerating over a distance of 100 m. what is the magnitude of the train's deceleration ?
O 1.5 m/s^2
O 10 m/s^2
a
O 3.1 m/s^2
O 6.2 m/s^2

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Idon’t quite understand this problem

Asher cycles 12 miles in 16 hours. what is his speed?