Two conditions under which we can assume that the sample means follow a normal distribution are as follows:
1). If the sample size is large enough, n greater than or equals 30, the sampling distribution is approximately normal regardless of the shape of the population.
2). In order to be considered a normal distribution, a data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean.
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Answer:
x = 10
Step-by-step explanation:
Answer:
320
Step-by-step explanation:
go backwards, 75 + 45 = 120
120 * 5/3 = 200
200+40 = 240
240 *4/3 = 320
Answer:
f = 5/6 = 0.833 or f = 0
Step-by-step explanation:
D. , this is a good way because this way you can easily multiply and then you'll see your answer right in front of you.
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