<span>B. The sample might not be representative of the population because it only includes students who are attending an after-school activity.</span>
Answer:
The third option
Step-by-step explanation:
the most reasonable
(66✖️578) ➗ 3368=55➗77
P parentheses
E exponents
M multiplication
D division
A addition
S subtraction
You would do (66✖️578) first since it is in parentheses
66✖️578=38,148
38,138➗3368=55➗77
Since there are no exponents or multiplication you would do division
38,138➗3368= 11.3236342
55➗77=0.7
11.32 does not equal 0.7
So this equation would be false
Hope this helps! :3
1/2 because you can simplify 4/8 and do 4 divided by 4 and 8 divided by 4 which is 1/2
Answer:
The mean, μ is 2.5063 and
The standard deviation, σ = 2.0499 × 10⁻²
Step-by-step explanation:
Here we have

and
10% have length < 2.48 in while
5% have length > 2.54 in
and
From the z score table
Critical z at 10% to the left = -1.282
Critical z at 5% to the right = 1.645
Therefore, the equations become
-1.282σ = 2.48 - μ → μ -1.282σ = 2.48
1.645σ = 2.54 - μ → μ + 1.645σ = 2.54
Solving the above equations gives
The mean, μ = 2.5063 and
The standard deviation, σ = 2.0499 × 10⁻².