Statistics

Statistics is the grammar of science.

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2) In a survey of 1002 people, 701 said that they voted in favor of putting more raisins in cereal. Voting records show that 61% of eligible voters actually voted. Find a 99% confidence interval estimate of the ...

I want to know problem 1 to problem 5 's answers

The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. x 11.8 8.3 6.8 3.3 2.8 2.5 2.6 0.7 y 13.8 11.3 9.6 6.6 6.5 6.5 6 4.3 x = thousa ...

Let f ( x ) be the height of a maple tree in inches and x the number of years since 2000. A linear model for the data is f ( x ) = 9.44 x + 84.182 . 3 6 9 12 15 50 60 70 80 90 ...

A survey was conducted to measure the number of hours per week adults spend on home computers. In the survey, the number of hours were normally distributed, with a mean of 7 hours and a standard deviation of 1 ...

The runs scored by 3 batsmen are 50, 48 and 12. Arithmetic mean’s respectively. The SD of their runs is 15, 12 and 2 respectively. Who is the most consistent of the three batsmen? If the one of these three is ...

a) The number of accidents occurring in a city in a day is a Poisson variate with mean 0.8. Find the probability that on a randomly selected day (i)There are no accidents (ii)There are accidents b) The incide ...

How do cells become specialized so they can have specific functions? A. They all have the same DNA but activate different genes specific to their needs. B. Your cerebellum signals the cells telling them what ...

Whilst shopping, the probability that Caroline buys fruit is 0.4. The probability that Caroline independently buys a CD is 0.6. Work out the probability that she buys fruit, a CD or both.

Watt Lovell Ltd. (WLL) is trying to decide whether or not to drill for oil on a particular site in North Eastern Kenya. The Chief Engineer has assessed the probabilities that there will be oil as follow, based ...

distance driven since the last fill-up of the gas tank and amount of gas left in the tank. do you expect a positive association between the two variables?