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The Ice Chalet offers dozens of different beginning iceskating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 64 girls and 16 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.

What is being counted?

Short Answer

Expert verified

It has been counted that number of girls that are aged between 8to 12and also Monday night beginning ice-skating class in the ice-Chalet

Step by step solution

01

Given information

Given in the question that

In an Ice skating class, there are were 64 girls and 16 boys. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked.

02

Solution

In a probability problem, the Fundamental Counting Principle is a method for displaying the digit of products. To get the total number of outcomes, you first multiply the possibilities together. We need to count the number of girls aged8 to 12 years old, as well as the number of girls who will begin ice-skating lessons in the ice-Chalet on Monday night.

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Most popular questions from this chapter

Construct a 95% confidence interval for the population proportion of households where the women make the majority of the purchasing decisions. State the confidence interval, sketch the graph and calculate the error bound.

What would happen if 40 heads of lettuce were sampled instead of 20, and the error bound remained the same?

The Ice Chalet offers dozens of different beginning iceskating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 64 girls and 16 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.

Calculate the following:

a. x = _______

b. n = _______

c. pโ€ฒ = _______

The data in the Table are the result of a random survey of 39national flags (with replacement between picks) from various countries. We are interested in finding a confidence interval for the true mean number of colors on a national flag. Let X=the number of colors on a national flag.

XFreq.11273184756

Construct a localid="1648450905983" 95%confidence interval for the true mean number of colors on national flags.

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