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My 0-12 points MintroStat9 1.E 093.Tut Many states assess the skills of their students in various grades. One of the tests provided by a national association assesses the reading skills of 12th-grade students. In a recent year, the national mean score was 286 and the standard deviation was 42. Assuming that these scores are approximately Normally distributed, N(286, 42), use the 68-95-99.7 rule to give a range of scores that includes 95% of these students. The scores of 95% of the students are between a lower value of and an upper value of Additional Materials Tutorial
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Man) SF, Ils of 寸her 3J-yjehks in vani al.kou, 34edeㅚ 600cM.lhi, 68 + gStm So, ue Compute average of obgew aho, 3 Sighi nte = 881 47.52 88 t 18 c-1 (40, 136) So The Sesres of 95. of the ent, one bles a dowe vaun of (uo) and an uphe voluw of 136)

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