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.
Answers: 3
Mathematics, 21.06.2019 19:00, haileysolis5
Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?
Answers: 3
Mathematics, 21.06.2019 21:30, emilyplays474
Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)
Answers: 1
Left-handedness occurs in about 12% of all americans. males are slightly more likely than females to...
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