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3 years ago

9

Tamara invested $15,000 in an account that pays 4% annual simple interest. Tamara will not make any additional deposits or withd

rawals. How much interest will Tamara earn on her investment at the end of 3 years?
A $1,800
B $600
C $450
D $1,873

1 answer:

STALIN [3.7K]3 years ago

5 0

In 3 years she will earn 1,800.

15,000 x .12=1,800

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Answer:

a) P [ X < 24 mm ] = 0,3015 or P [ X < 24 mm ] = 30,15 %

b) P [ X > 32 mm ] = 0,1251 or P [ X > 32 mm ] = 12,51 %

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Step-by-step explanation:

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P [ X < 24 mm ] = - 0,52

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P [ X < 24 mm ] = 0,3015 or P [ X < 24 mm ] = 30,15 %

b)P [ X > 32 mm ] = 1 - P [ X < 32 mm ]

P [ X < 32 mm ] = ( 32 - 26,5 ) / 4,8

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P [ X < 32 mm ] = 1,15

And from z-table we get

P [ X < 32 mm ] = 0,8749

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P [ X > 32 mm ] = 1 - 0,8749

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P [ X < 30 ] = 30 - 26,5 / 4,8 = 0,73

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d) If 20 %

z- score for 20% is from z-table

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