Biology

Biology, 10.07.2019 17:00, airrish

Gardner is a left-handed adult. it is most likely that he has a thicker-than-normal:

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Mathematics, 28.06.2019 10:00, lalllda

Item 18 question 1 of the students in your class, 12% are left-handed. what fraction of the students are left-handed? are there more right-handed or left-handed students? explain. write your answers in simplest form. of the students are left-handed. of the students are right-handed. a comparison of these two fractions is:

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Mathematics, 01.07.2019 19:10, selene29

According to the national health survey, 9.8 % of the population of 18-24 year olds in the us are left-handed. supposed you select 10 individuals form this popoulation and x is the number of persons who are left handed.how many left-handed people are expected to be selected? what is the variance and standard deviation of x? what is the probability that exactly 4 people are left-handed? what is the probability that at least 4 people are left-handed? what is the probability that at most two people are left-handed? given that at least 4 people are left-handed, what is the probability that exactly 4 are left-handed?

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Business, 27.07.2019 18:30, kiraswife

Do left-handed or right-handed people make more money? one study1 recorded the hourly earnings for a random sample of american men, of whom were right-handed and were left-handed. the right-handed men earned an average of per hour, while the left-handed men earned an average of per hour. the sample standard deviation for both left-handed and right-handed workers was about . test the hypothesis that the average earnings for left-handed and right-handed men are the same.

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Mathematics, 01.11.2019 03:31, sheldavis

Left-handedness occurs in about 12% of all americans. males are slightly more likely than females to be left-handed, with 13% of males and 11% of females being left-handed. suppose a random sample of 80 females and 100 males is chosen. -let x be the number of males (out of the 100) who are left-handed. -let y be the number of females (out of the 80) who are left-handed. -let z be the total number of left-handed individuals in the sample (males and females together). which of the following is true regarding the random variables x and y? a)both x and y can be well approximated by normal random variables. b)only x can be well approximated by a normal random variable. c)only y can be well approximated by a normal random variable. d)neither x nor y can be well approximated by a normal random variable.

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