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Tems11 [23]
2 years ago
15

!! PLEASE HELP, TIMED!!Multiple choice, BRAINLIEST for correct answer

Mathematics
1 answer:
Over [174]2 years ago
7 0

Answer:

neither!

Step-by-step explanation:

You might be interested in
Mr. jones has two children. the older child is a girl. what is the probability that both children are girls?
allsm [11]
Since we already know that the older child is a girl (a 100% chance to be a girl), there must be a 50% chance that the other child is a girl. Therefore, the probability that both children are girls is 50%.
Hope this helps!
3 0
3 years ago
One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s
siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}

on substituting the given respective values, we get

S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}

or

S^{2}_{p} = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

4 0
2 years ago
A painter is placing a ladder to reach the third story window, which is 12 feet above the ground and makes an angle of 80 degree
mash [69]
We know that
tan ∅=opposite side angle ∅/adjacent side angle ∅
adjacent side angle ∅=opposite side angle/tan ∅

in this problem
see the attached figure to better understand the problem
angle ∅=80°
opposite side angle ∅=12 ft  (AB)
adjacent side angle ∅=? (AC)
adjacent side angle ∅=12/tan 80°------> 2.12 ft

the answer is
2.12 ft

3 0
3 years ago
The mean of a data set is 16. What is the absolute deviation of a data point at 19?
S_A_V [24]

Answer:

i need a set of numbers to do this

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help me with this!!!
Alex Ar [27]
He’s right !! He helps me with my problems!
4 0
2 years ago
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