Solve the problem.
-A study was conducted to determine whether flipping a penny or spinning a penny has an effect on the Proportion of heads. Among 56,126 trials, 25,586 involved flipping pennies, and 12,630 of those pennies turned Up heads. The other 30,540 trials involved spinning pennies, and 12,815 of those pennies turned up heads.
(i) What percentage of the trials involved flipping pennies?
(ii) What percentage of the trials involved spinning pennies?
(iii) Among the pennies that were flipped, what is the percentage that turned up heads?
(iv) Among the pennies that were spun, what is the percentage that turned up heads?
Round your answers to the nearest percent.
A) (i) $46 \%$; (ii) $54 \%$; (iii) $170 \%$; (iv) $142 \%$

B) (i) $54 \%$; (ii) $46 \%$; (iii) $49 \%$; (iv) $42 \%$

C) (i) $46 \%$;(ii) $54 \%$;(iii) $49 \%$; ((iv) $42 \%$

D) (i) $46 \%$;(ii) $54 \%$;(iii) $50 \%$; (iv) $41 \%$

Question

Solve the problem.
-A study was conducted to determine whether flipping a penny or spinning a penny has an effect on the Proportion of heads. Among 56,126 trials, 25,586 involved flipping pennies, and 12,630 of those pennies turned Up heads. The other 30,540 trials involved spinning pennies, and 12,815 of those pennies turned up heads. 
(i) What percentage of the trials involved flipping pennies?
(ii) What percentage of the trials involved spinning pennies?
(iii) Among the pennies that were flipped, what is the percentage that turned up heads?
(iv) Among the pennies that were spun, what is the percentage that turned up heads?
Round your answers to the nearest percent. 
A) (i) $46 \%$; (ii) $54 \%$; (iii) $170 \%$; (iv) $142 \%$

B) (i) $54 \%$; (ii) $46 \%$; (iii) $49 \%$; (iv) $42 \%$

C) (i) $46 \%$;(ii) $54 \%$;(iii) $49 \%$; ((iv) $42 \%$

D) (i) $46 \%$;(ii) $54 \%$;(iii) $50 \%$; (iv) $41 \%$

Quizplus · Accepted Answer

(i) Percentage of trials involving flipping pennies = $\frac{25,586}{56,126} \times 100 \approx 46\%$(ii) Percentage of trials involving spinning pennies = $\frac{30,540}{56,126} \times 100 \approx 54\%$(iii) Percentage of flipped pennies that turned up heads = $\frac{12,630}{25,586} \times 100 \approx 49\%$(iv) Percentage of spun pennies that turned up heads = $\frac{12,815}{30,540} \times 100 \approx 42\%$

Solve the Problem 46%46 \%46% ; (Ii) 54%54 \%54% ; (Iii) 170%170 \%170%

Solve the Problem $46 \%$ ; (Ii) $54 \%$ ; (Iii) $170 \%$