Mathematics, 27.06.2020 17:01 payshencec21
Joanna has nickels, dimes, and pennies in a jar. The probability of drawing a nickel from the far is 0.3, the probability of drawing a dime is 0.2,
and the probability of drawing a penny is 0.5. Joanna plcks a coin from the jar 240 times, replacing each coln before the next draw. About how
many times would Joanna plck a dime in 240 draws?
A.
36
B.
48
C.
100
D.
120
Answers: 1
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If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
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How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way
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Joanna has nickels, dimes, and pennies in a jar. The probability of drawing a nickel from the far is...
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