Solve the problem.Find the expected number of boys in a family of 4 children.

A. 3
B. 2
C. 2.75
D. 2.5


Answer: B

Mathematics

You might also like to view...

Evaluate the integral.

A.
B.
C. 279
D.

Mathematics

Simplify by combining like terms.3.8x + y + 7.6 - 6.2x - 3.7 - y

A. 2.4x + 11.3 B. -2.4x + 3.9 C. -2.4x + 3.9 + 2y D. -2.4x - 3.9 - y

Mathematics

Graph the inequality.x - y < -6

A.

B.

C.

D.

Mathematics

Solve.A company has 63,000 employees. Of these,  drive alone to work,  car pool,  use public transportation,  cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?

A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 

Mathematics