Walker took a sample of 5 of his classmates and
timed them as they completed a maze he
created. Here are their times in minutes):-
1,6,6, 7, 10
The mean of these times is T = 6 minutes.
What is the standard deviation?
Round your answer to two decimal places.
SC
minutes

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling