The proportion of observations from a standard Normal distribution that take values greater than 1.78 is...
this three questions 3.22 The proportion of observations from a standard Normal distribution that take values greater than 1.78 is about (a) 0.9554. (b) 0.0446. (c) 0.0375. The proportion of observations from a standard Normal distribution that take values between 1 and 2 is about (a) 0.025. (b) 0.135. (c) 0.160. The scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15 Alysha scores 135 on such a test. She scores higher than...
9 (3.22) The proportion of observations from a standard Normal distribution that take values greater than 1.58 is about 0.001) eBook 10 (3.22) The proportion of observations from a standard Normal distribution that take values less than-1.23 is about 0.0001) eBook
The proportion of observations from a standard Normal distribution that take values greater than 1.68 is about (±0.001)
9. (3.22) The proportion of observations from a standard Normal distribution that take values greater than 1.47 is about 0.001)
The proportion of observations from a standard Normal distribution that take values greater than 1.15 is about(a) 0.1251(b) 0.8532(c) 0.8729(d) 0.8749(e) 0.8770
3.23 The proportion of observations from a standard Nor- al distribution that take values between 1 and 2 is about (a) 0.025. (b) 0.135. (c) 0.160.
The proportion of the observation from a Standard Normal Distribution that take values ggreater than 1.15 is about(a) 0.1251(b) 0.8531(c) 0.8729(d) 0.8749(e) 0.8770
Find zz such that the proportion of observations that are less than zz in a standard normal distribution is 0.34.. (Enter your answer rounded to two decimal places.) Find zz such that 34%34% of all observations from a standard normal distribution are greater than z.z. (Enter your answer rounded to two decimal places.)
(a) Find ? such that the proportion of observations that are less than ? in a standard normal distribution is 0.36. (Enter your answer rounded to two decimal places.) (b) Find ? such that 36% of all observations from a standard normal distribution are greater than ?. (Enter your answer rounded to two decimal places.)
14. (3.28) Find the proportion of observations (±0.0001) from a standard Normal distribution that falls in each of the following regions. In each case, sketch a standard Normal curve and sha the area representing the region. (a)z -2.33: (b)-2.33 (c)z 1.55 (d)-2.33 <z<1.55: