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What is statistics

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Reference no: EM13841272

What is statistics?

What are the branches of statistics? Discuss.

Reference no: EM13841272

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Basic Statistics Questions & Answers

  Using correct notation find the probability that a randomly

given a koi population that is 55 male and that 1 out of every 3 males is yellow while only 1 out of every 5 females is

  The sample mean and sample variance of five data values

the sample mean and sample variance of five data values are respectively macrx 104 and s2 4. if three of the data

  Consider a binomial distribution with 15 identical trials

Consider a binomial distribution with 15 identical trials, and a probability of success of 0.5. Use the normal approximation to find the probability that x = 2.

  A recent survey described the sleep time of college

a recent survey described the sleep time of college students as normally distributed with a standard deviation of 1.15

  Find probability that fewer than seven patients are cured

Suppose it is known that a new treatment is successful in curing muscular pain in 75% of the cases. If it is tried on 9 patients, find the probability that fewer than 7 patients are cured.

  The birth weights for twins are normally distributed with a

the birth weights for twins are normally distributed with a mean of 2353 grams and a standard deviation of 647 grams.

  Proportion of seeds that germinate dependent on seed type

Seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type?

  Determine the efficiency of market research

Determine the Efficiency of this market research. What would be your suggestions? How much will this company be eager to pay for this market research?

  Find the probability that among 13 pea offspring

Find the probability that among 13 pea offspring; at least 1 pea has a green pod and find the probability that among 8 pea offspring between 2 and 5 have yellow pods.

  Calculate power of test if researcher uses sample

A researcher is estmating influence of treatment using sample selected from normally distributed population with mean of µ = 80 and standard deviation of σ = 20. Calculate power of test if researcher uses sample of n = 25 individuals.

  Hypothesis testing-sugar in cereals

Sugar in Cereal. Different cereals are randomly selected, and the sugar content (grams of sugar per gram of cereal) is obtained for each cereal

  Setting up inequalities

Suppose wheat and sugar are two basic ingredients necessary to bake two items: a loaf of bread and a muffin. A baker has 25 pounds of wheat and 5 pounds of sugar.

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