How Good Are You @Math?

Random Math Questions..Get A Passing Grade..You Can Take My New One That I Will Make Later:)

published on January 28, 201418 responses 4 5.0★ / 5

In the data set below, what is the standard deviation? If the answer is a decimal, round it to the nearest tenth. (standard deviation (σ): ) 36 70 61 30 93 96 76

23.8
28.3
83.2

Mr. Norton kept track of the number of hours his 5 students spent doing volunteer work. His records showed: 8 hours 7 hours 8 hours 6 hours 8 hours What was the standard deviation of the numbers of hours spent doing volunteer work? If the answer is a decimal, round it to the nearest tenth. ( standard deviation (σ): )

8.0
0.8
0.08

An oral surgeon is tracking how many patients were referred to him by various local dentists. In the past year, 7 dentists made the following number of referrals 7 patients 5 patients 6 patients 3 patients9 patients 5 patients 7 patients What was the standard deviation of the numbers of referrals?If the answer is a decimal, round it to the nearest tenth. ( standard deviation (σ): - )

8.1
1.8
.18

If r is true and s is true, what is the truth value of r∧s?

true
false
cannot be determined

If q is false, what is the truth value of ~q?

cannot be determined
true
false

0.8 × 0.8 =

0.66
0.64
0.56

Eleanor sold 6 old books in online auctions. The winning bids were $35.00 $91.00 $99.00 $84.00$44.00 $88.00 What was the standard deviation of the winning bids? If the answer is a decimal, round it to the nearest ten cents. ( standard deviation (σ): )

45.90
25.98
$24.60