Mathematics, 11.01.2020 01:31 catt707p38uu0
When the stanford-binet iq test came into use in 1932, it was adjusted so that the scores for each age group of children followed roughly the normal distribution with a mean of 100 and a standard deviation of 15. the test is readjusted from time to time to keep the mean at 100. if present-day american children took the 1932 stanford-binet test, their mean score would be about 120.
the reasons for the increase in iq over time are not known but probably include better childhood nutrition and more experience in taking tests.
if children today took the 1932 test, _percent will have very superior scores. iq scores above 130 are often called very superior. assume that the standard deviation 15 does not change. (round your answer to one decimal place.)
Answers: 2
Mathematics, 21.06.2019 14:10, kiera2599
Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41
Answers: 2
Mathematics, 21.06.2019 15:50, tylerwayneparks
(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)
Answers: 2
When the stanford-binet iq test came into use in 1932, it was adjusted so that the scores for each a...
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