Learning how to walk can be a difficult task for babies.if a baby can walk 1 1/2 miles in an hour,how far will it be able to tra
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Answer:
a) X[bar]=93
b)S=5.39
Step-by-step explanation:
Hello!
<em>A simple random sample of 5 months of sales data provided the following information: Month: 1 2 3 4 5 Units Sold: 94 100 85 94 92 </em>
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<em>a. Develop a point estimate of the population mean number of units sold per month. </em>
The variable of interest is:
X: Number of sales per month.
A random sample of n=5 months was taken, for each month, the number of units sold was recorded. To calculate the mean of the sample you have to add all the observed frequencies (Units Sold) by the sample size (n)
X[bar]= ∑X/n= 465/5=93
You can say that, on average, 93 units were sold over the 5-month period.
<em>b. Develop a point estimate of the population standard deviation.</em>
To calculate the sample standard deviation you have to calculate the variance and then its square root:
∑X= 465
∑X²= 43361
S= √29= 5.385≅ 5.39
I hope this helps!
Answer:
Population of monkeys after 2 years = 3200
Step-by-step explanation:
Total number of monkeys at the start = 2975
Increase ratio of monkey population one year =
∴ New population of monkeys after 1 year=
Decrease ratio the next year =
∴ Population of monkeys after 2 years=
I don't know if there was supposed to be an image or something attached, but anything greater than 5,043 would be represented in the inequality
.
This includes every number greater than 5,043, including 5,044, 1,000,000, and everything in between and above.