If you have a 4 feet long poster how do you equally split it by 3 people
2 answers:
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Answer:
Probability that their mean is above 215 is 0.0287.
Step-by-step explanation:
We are given that a bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50.
For this, 40 different applicants are randomly selected.
<em>Let X = ratings for credit</em>
So, X ~ N()
Now, the z score probability distribution for sample mean is given by;
Z = ~ N(0,1)
where, = population mean = 200
= standard deviation = 50
= sample mean
n = sample of applicants = 40
So, probability that their mean is above 215 is given by = P( > 215)
P( > 215) = P(
>
) = P(Z > 1.897) = 1 - P(Z
1.897)
= 1 - 0.97108 = 0.0287
Therefore, probability that their mean is above 215 is 0.0287.
Answer:
$25.65
Step-by-step explanation:
Since we are applying a discount to a price tag, we will be <u>decreasing</u> the amount of that price tag.
In this case, we will be taking 5% off of $27. This means that our new price tag will be 95% of what it originally was. To find the answer, we must first change 95% into a decimal.
95% -> -> 0.95
Next, we multiple $27 by 0.95 as shown below:
Our answer will be:
$25.65