Answer:

Step-by-step explanation:
There are 3 outcomes out of 5 that are odd.

Throw it 50 times.

Answer:
The common difference =3
Step-by-step explanation:
The common difference for the arithmetic sequence = 16-13 = 3
Answer:
10/21=30/63
4/9=28/63
Step-by-step explanation:
Find the lcm (least common multiple) of 21 an 9, which is 63. Then divide 21 and 9 separately by 63. The multiply that number by the numerator.
Answer:
b. 66
Step-by-step explanation:
s2 Could refer to the variance of the 66 employees' salaries