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Need help please and thank you juanita scored 6.4 points above her average score where 5. Find the percentage of all values in a normal

Need help please and thank you

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juanita scored 6.4 points above her average score where 5. Find the percentage of all values in a normal distribution for each z-score. a.zs 215 b.z s 1.25 CZ 2 .62 a.zs-2.26 b. z s.48 C.12 -1.39 6. Given the mean & and standard deviation o, find the z-score for each data point x B. H = 01 0 =2:x =3 b. * = 1; a =.15 x = .7 CM = 100; 0 = 15;x = 70 # = 2.7; g = 0.5;x = 3.0 7. Mrs. Smith surveyed the students in her class to find the number of minutes they spent doing homework each night. She found that the data was normally distributed with a = 30 and o = 10 min. Draw the normally distributed curve. a. What range of time spent doing homework contains the 68% closest to the mean? b. How much time spent on homework would you expect from the 2.5%% of the students with the least time spent on homework? c. Jeffery studied 25 min last night. What percent of the students studied fewer minutes than Jeffery? Round to the nearest hundredth

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