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:
I would say the last one
Step-by-step explanation:
Answer:
A pack of pencil' price=$8
Price went up=$12
increasing percentage = change/original x100
= (12 -8)/8 x100
=4/8 x100
=50%
Answer:
z divided by 4
Step-by-step explanation: im pretty sure quotient means division so just Z divided by 4
hope it helps! :)
Zeljko's father pays $55 each month.
The cost of the TV bought by Zeljko's father = $660
The payment for the TV is divided monthly for a year.
But one year = 12 months.
Therefore, the amount of money he will pay per month would be the total amount divided by 12, that is,
= 660/12
= $55
Therefore, Zeljko's father pays $55 each month.
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