The correct answer for the question that is being presented above is this one: "<span>The missing digit is 3."</span>
The missing digit is represented by A ⇒ $1A2, where A represents a whole number from 0 to 9.
Try substituting any number from 0 to 9 for A (the middle digit or tens place) , then divide by 11 members.
<span>Option 2: A = 3 ⇒ $1 </span><span>3 </span>2
$ 132 ÷ 11 = $12
The only one-digit that gives a whole number quotient when it takes the place of tens digit in $1 __2 is<span> 3.</span><span> Because $ 132 ÷ 11 = $ 12. (Option 2)</span>
The missing digit is 3.
Answer:
0.02275
Step-by-step explanation:
We use this z score formula to solve for this question
z-score is is z = (x-μ)/σ/√n
where x is the raw score
μ is the population mean
σ is the population standard deviation
From the above question,
x = 77
μ = 75
σ = 7
number of samples = 49
Hence, the z score = 77 - 75/ (7/√49)
= 2/(7/7)
= 2/1
= 2
Hence, the z score = 2
Using the z table to find probability
P(x<77) = 0.97725
P(x>77) = 1 - P(x<77)
= 1 - 0.97725
= 0.02275
Therefore, the probability that the same mean will be larger than 77 years
is 0.02275
