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 14:00, pandagorwar
Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?
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Mathematics, 21.06.2019 16:30, catdog2230
Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)
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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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