Countries with lower fertility rates have a higher life expectancy

1.A researcher wants to evaluate whether countries with lower fertility rates have a higher life expectancy. They collect the fertility rates and the life expectancies of countries around the world. Is this an observation or an experiment? Why?

2.A statistics class has the following activities and weights for determining a grade in the course: test 1 worth 15% of the grade, test 2 worth 15% of the grade, test 3 worth 15% of the grade, homework worth 10% of the grade, semester project worth 20% of the grade, and the final exam worth 25% of the grade. If a student receives an 85 on test 1, a 76 on test 2, an 83 on test 3, a 74 on the homework, a 65 on the project, and a 79 on the final, what grade did the student earn in the course?

3.Suppose you take a standardized test and you are in the 10th percentile. What does this percentile mean? Can you say that you failed the test? Explain.

4.You are going to a benefit dinner, and need to decide before the dinner what you want for salad, main dish, and dessert. You have 2 different salads to choose from, 3 main dishes, and 5 desserts. How many different meals are available?

5.You have a group of twelve people. You need to pick a president, treasurer, and secretary from the twelve. How many different ways can you do this?

6.An urn contains five red balls, seven yellow balls, and eight white balls. How many different ways can you pick two red balls?

7.How many ways can you choose seven people from a group of twenty?

8.The commuter trains on the red Line for the Regional Transit

Authority (RTA) have a waiting time during peak rush hour periods of ten minutes

a.) State the random variable.

b.) Find the probability of waiting between two and five minutes.

c.) Find the probability of waiting between seven and ten minutes.

d.) Find the probability of waiting eight minutes exactly

9.A study conducted found the length of Atlantic cod to have a mean

of 49.9 cm and a standard deviation of 3.74 cm. Assume the length of fish is normally distributed.

a.) State the random variable.

b.) Find the probability that an Atlantic cod has a length less than 52 cm.

c.) Find the probability that an Atlantic cod has a length of more than 74 cm.

d.) Find the probability that an Atlantic cod has a length between 40.5 and 57.5

cm.

e.) If you found an Atlantic cod to have a length of more than 74 cm, what could you conclude?

f.) What length are 15% of all Atlantic cod longer than?

Sample Solution

ollowing the primary change act came the Chartist development which previously rose in 1836 and expanded in action up to 1848. Chartism was particularly a development for individuals of the common laborers and expected to give them political rights. Chartism had six fundamental points which they crusaded for. Right off the bat Chartists needed a decision in favor of all men matured twenty one who were not being rebuffed for a wrongdoing and who were intellectually steady. Chartists additionally needed to present the mystery voting form, this was to ensure the voter and permit to cast a ballot unreservedly. Chartists likewise needed installment of MPs so they would have the option to remove time from their occupations to speak to the country. Yearly parliamentary decisions and appointive areas of turning out to be equivalent size were likewise things that Chartists were crusading for. Chartism is a prime case of well known weight as it was a development which had increased a huge following in the expectation of accomplishing parliamentary change. Altogether the development set forward three petitions in 1839, 1842 and 1848. Each request as dismissed however it was said the last appeal of 1848 was said to have had 6,000,000 marks. Regardless of whether this number is right or misrepresented is immaterial in light of the fact that we can’t deny that by late 1840s Chartism had developed in size and notoriety. At the point when it came to conveying the request there should be a mass gathering on Kennington Common in London. Parliament anticipated a huge turnout so sent 8,000 troopers to attempt to control the circumstance. They were welcomed with just 20,000 Chartists the same number of didn’t go to due the downpour that day. This was viewed as a monstrous disappointment and the appeal getting dismissed prompted the destruction of Chartism. In spite of the fact that the Chartist development reached a conclusion without accomplishing any of their points they did effectively construct pressure and make agitation. Going ahead to the later changes demonstrations of 1867 and 1884 numerous chartist thoughts were incorporated which makes the feeling that the development affected later change. Subsequently making it more effective than it showed up.

Concerning the second Reform Act, there were enormous expansions of the vote, specifically it gave the vote to huge quantities of town laborers. There is difference among students of history about whether the 1867 demonstration was because of legislator’s moves or well known weight, yet there was incredible development in neighborhood party political action and savage contention later created about whether ladies ought to have the vote. The strategies of political pioneers utilizing parliamentary change as an approach to outmaneuver their adversaries for example a few MPs utilized the unsettling influences as a contention for concurring change before pressure expanded. Then again, well known weight was very essential to the second Reform Act as the Reform League and the Reform Union, both established in 1864, requested change, however the disturbance basically created in the wake of driving government officials took up the issue in 1866, and there was little brutality contrasted with the turbulent uproars of the mid nineteenth century. All things being equal, there were unsettling influences at Hyde Park in July 1866, hordes of more than 1

This question has been answered.

Get Answer
WeCreativez WhatsApp Support
Our customer support team is here to answer your questions. Ask us anything!
👋 Hi, Welcome to Compliant Papers.