<u>x₂ + x₁</u> = m <u>y₂ + y₁</u> = m<u>
</u> 2 2
<u>
</u>-10 = x₂
<u />9 = y₂
2=m
5=m
Plug in given numbers
<u>-10 + x</u> = 2 <u>9 + y</u><u /> = 5
2 2
Solve
<u>-10 + x</u> = 2*2
2 *2
-10 + x = 4
+10 +10
x = 14
(9 + y)/2(2) = 5 (2)
9 + y = 10
-9 -9
y=1
Final Answer: (14,1)
Answer:
the anwser is 27
Step-by-step explanation:
glad I could help!
5
8
6 or 7
Just taking a guess
Given:
μ = 68 in, population mean
σ = 3 in, population standard deviation
Calculate z-scores for the following random variable and determine their probabilities from standard tables.
x = 72 in:
z = (x-μ)/σ = (72-68)/3 = 1.333
P(x) = 0.9088
x = 64 in:
z = (64 -38)/3 = -1.333
P(x) = 0.0912
x = 65 in
z = (65 - 68)/3 = -1
P(x) = 0.1587
x = 71:
z = (71-68)/3 = 1
P(x) = 0.8413
Part (a)
For x > 72 in, obtain
300 - 300*0.9088 = 27.36
Answer: 27
Part (b)
For x ≤ 64 in, obtain
300*0.0912 = 27.36
Answer: 27
Part (c)
For 65 ≤ x ≤ 71, obtain
300*(0.8413 - 0.1587) = 204.78
Answer: 204
Part (d)
For x = 68 in, obtain
z = 0
P(x) = 0.5
The number of students is
300*0.5 = 150
Answer: 150
Answer:
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Step-by-step explanation:
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