Solve the problem.Two coins are tossed 20 times and the number of tails is observed.Compute the empirical probability that exactly one tail occurred.

A. 0
B.
C.
D.


Answer: A

Mathematics

You might also like to view...

Decompose into partial fractions.

A.  - 
B.  + 
C.  - 
D.  - 

Mathematics

Solve the problem.Behemoth Back Packs, Inc. finds that the cost to make each of its backpacks is $20 and each backpack sells for $79. If the company's fixed costs for a month are $7723, how many backpacks must the company sell in a month in order to make a profit?

A. at least 131 backpacks B. at most 75 backpacks C. at least 79 backpacks D. at least 146 backpacks

Mathematics

Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.cos 25°sin 65° + sin 25°cos 65°

A. -1 B. 2 C. 0 D. 1

Mathematics

Combine like terms.-7x3y4 + 8x3y4 - 9x3y4 - 4x3y4 + 8x3y4

A. Can't be simplified B. 10x3y4 C. -20x3y4 D. -4x3y4

Mathematics