You previously found the mean of this data set. Use that in answering the question. 63, 89, 92, 73, 79, 72, 34, 36, 94, 21, 25,
kicyunya [14]
Answer:
Sum of squares of differences = 11239.74
Step-by-step explanation:
We are given the following data set:
63, 89, 92, 73, 79, 72, 34, 36, 94, 21, 25, 93, 22, 90, 79
We have to calculate the sum of square of the data set.
Formula:
where
are data points,
is the mean and n is the number of observations.

Sum of squares of differences =
1.284444444 + 618.3511113 + 776.5511113 + 78.61777778 + 221.0177779 + 61.88444445 + 908.0177776 + 791.4844443 + 892.017778 + 1860.484444 + 1531.417778 + 833.2844446 + 1775.217777 + 669.0844446 + 221.0177779
= 11239.74
X = 18.8 bc that’s the only thing that makes sense and us lazy people don’t need to work things out
Answer:
19.35% probability that five will have completed four years of college
Step-by-step explanation:
For each individual chosen, there are only two possible outcomes. Either they have completed fourr years of college, or they have not. The probability of an adult completing four years of college is independent of any other adult. So the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
28% of individuals
This means that 
For a sample of 15 individuals, ages 25 and older, what is the probability that five will have completed four years of college?
This is P(X = 5) when n = 15. So


19.35% probability that five will have completed four years of college
Answer:
angle of depression ≈ 53.8°
Step-by-step explanation:
the angle of depression is the measure of the angle from the horizontal downwards from the top of the flag pole.
this angle is alternate to ∠ A and is congruent to ∠ A
using the sine ratio in the right triangle
sin A =
=
, then
∠ A =
(
) ≈ 53.8° ( to 1 d.p )
Angle of depression ≈ 53.8°
Answer:
D 45.6 Square centimetres
Step-by-step explanation:
8 cm time 5.7 cm