Missing Number
Find X in Each Question

1) 72, 56, X, 77, 69. If Mean is 71.
2) 12, X, 22, 27, 23, 17. If Mean is 20.

3) 5, 14, 12, X, 10, 4. If Mean is 9.
4) 84, 92, 79, X, 82, 93. If Mean is 86.

5) 31, X, 8, 29, 5, 14. If Mean is 15.

Find the Mean of Decimal numbers

1) 61.5, 70.3, 74.2, 69.2
2) 45.9, 36.2, 39.7, 41.4

3) 15.9, 18.2, 12.4, 10.7
4) 62.1, 49.3, 55.4, 43.8

5) 11.2, 15.3, 9.6, 12.1

Add or subtract polynomial : –12qr? +13rq?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.