Answer:
Step-by-step explanation:
Let x be the random variable. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 474
σ = 32
x = 514
The probability of being below 514 is expressed as P(x < 514)
For x = 514,
z = (514 - 474)/32 = 1.25
Looking at the normal distribution table, the probability value corresponding to area below the z score is 0.89
Therefore,
P(x < 514) = 0.89
Answer:
<em>t</em>=2d/s
Step-by-step explanation:
Combining Expressions and isolating the variable <em>t</em>
The final step in solving the inequality=
-6<-2x
-2x>-6
x<3
55 and 57
Let the first number be n
n
+
(
n
+
2
)
=
112
simplifies to
2
n
=
110
divide by two
n
=
55
and
(
n
+
2
)
=
57
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