Answer:
40 magazines.
Step-by-step explanation:
- $200 pay from the bookstore.
- $2 every magazine sold.
- Needs $280 for her school trip.
She gets $200 from the book store the week she needs $280 for the school trip. Therefore, she only needs $80 in order to go.
$80 ÷ $2 = 40
40 magazines.
Answer: C) There is a probability that the outcome is within 1 standard deviation of the mean.
Step-by-step explanation:
The Standard Deviation Rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean. According to the rule,
68% of data falls within the first standard deviation from the mean.
95% fall within two standard deviations.
99.7% fall within three standard deviations
Therefore, the correct answer is
C) There is a probability that the outcome is within 1 standard deviation of the mean.
Here is the formula
V= pi x radius (squared) x height
3.14 x 5 x 7 = 549.5
