Answer:
C) Izzy
Step-by-step explanation:
Justin typed 90 words in 2 minute:
work
405/9=45 words a minute
45*2=90
Remmy typed 84 words in 2 minute:
work
420/10=42 words a minute
42*2=84
Izzy typed 98 words in 2 minutes:
work
588/12= 49 words a minute
49*2 = 98
I hope this helps :)
Answer:
Angle 1= 147
Angle 2= 33
Step-by-step explanation:
(4a+7) + (a-2) = 180
4a+7+a-2=180
5a+5=180
5a=175
a= 35
plug in 35 for A to find measurements
4(35) +7 = 147
(35) -2= 33
Answer:
1.7
Step-by-step explanation:
I hope this helps you :/
The inequality for this problem would be 10.99c + 8.89b ≤ 25.
To find this, we need to know that for every pound of cashews (c) we have to pay 10.99. That's how we find the first term. Similar for the second in which we charge 8.89 for blueberries (b).
Then when we add these together, we know that they must not be greater than 25. So we can express it with a ≤.
Answer:
Yes, to construct a confidence interval, it is necessary to check whether the population is approximately normal or not.
Step-by-step explanation:
The information about distribution of population is important in order to find out the sampling distribution. When we want to construct confidence interval, the accuracy of results depend on three conditions.
1. The data needs to be randomly selected.
2. The sampling distribution needs to be normally distributed
3. The observations must be independent.
So one of the conditions is to ensure that the population is normally distributed.
We know from the central limit theorem, the sampling distribution is approximately normal as long as the expected number of successes and failures are equal or greater than 10
np ≥ 10
n(1 - p) ≥ 10
When the population follows normal distribution then a small number of samples will be adequate, on the other hand, if the population is skewed then we need a greater sample size to ensure normal sampling distribution.
Therefore, it is necessary to check whether the population is approximately normal before constructing a confidence interval.