A national park is famous for its beautinul desert landscape and its rock format

Question

A national park is famous for its beautinul desert landscape and its rock formations of at least 3 feet. The height of the rock formation is rounded to the nearest foot l many natural rock formations. The fellowing table is based on information gathered by a park ranger of ror a rock forma on chose atrandom bom this pa answers to two decimal places use the peed wh mation boetrate the p babity bee heg t eem-b.ulm/ (a) 3 to 9 feet (b) 30 feet or taller (c) 3 to 49 feet (d) 10 to 74 feet (e) 75 feet or taler Need Help? touter Show My Work Me @ 4 2 3

Explanation / Answer

Total rock formations in park = 110 + 82 + 27 + 29 + 10 = 258

Probability = Number of favorable outcome / Total number of outcome

a )

P( Height of rock formations 3 -9 feet ) = 110 / 258 = 0.43

b)

Total number of rock formation 30 or taller = 27 + 29 + 10 = 66

P( Height of rock formations 30 or taller ) = 66/258 = 0.26

c)

Total number of rock formations 3 to 49 feet = 110 + 82 + 27 = 219

P( Height of rock formations 3 to 49 feet ) = 219 / 258 = 0.85

d )

Total number of rock formations10 to 74 feet = 82 + 27+ 29 = 138

P( Height of rock formations 10 to 74 feet ) = 138 / 258 = 0.53

e)

P( Height of rock formations 75 feet or taller ) = 10/258 = 0.04

Height of rock formations, feet 3-9 10-29 30-49 50-74 75 and higher Number of rock formations in park 110 82 27 29 10

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