MATHEMATICS
MIDDLE SCHOOL

Answer: Do you mean decimal? If so, it would be .875

COLLEGE

The average age of senators in the 108th congress was 57 years. if the standard deviation is 15 z score corresponding to the oldest senator is

The solution for this problem would be:

Since you didn't give the oldest age of the senator, let us assume it is 86 years old.

Now, the z score can be calculated by: z = X - mean / standard deviation.

Plugging in our values:

= 86 - 57 / 15= 29 / 15= 1.93333333 is the z score

Since you didn't give the oldest age of the senator, let us assume it is 86 years old.

Now, the z score can be calculated by: z = X - mean / standard deviation.

Plugging in our values:

= 86 - 57 / 15= 29 / 15= 1.93333333 is the z score

HIGH SCHOOL

How do you solve 2.75+.003+.158=

You line all the decimals up then you add just like regular addition and your answer will be 2.911.

2.750 + 0.003 + 0.158

= 2.753 + 0.158

= 2.911

= 2.753 + 0.158

= 2.911

MIDDLE SCHOOL

Fraction less than 1/2

1/4 is the answer is is a lower fraction

1/3; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128 all in between and all below

MIDDLE SCHOOL

Random digits 0,1,2,3,4,5,6,7,8,9. what is the probability that a multiple of 4 is picked?