select the correct answer.\nhow many times would a coin have to show heads in 50 tosses to have an…

select the correct answer.\nhow many times would a coin have to show heads in 50 tosses to have an experimental probability of 70%?\na. 10\nb. 25\nc. 35\nd. 45

select the correct answer.\nhow many times would a coin have to show heads in 50 tosses to have an experimental probability of 70%?\na. 10\nb. 25\nc. 35\nd. 45

Answer

Explanation:

Step1: Recall the formula for experimental probability

Experimental probability (P=\frac{\text{Number of successful outcomes}}{\text{Total number of trials}}). Let (x) be the number of heads. Here, (P = 0.7) (since (70%=0.7)) and the total number of trials (n = 50).

Step2: Substitute values into the formula and solve for (x)

We have (0.7=\frac{x}{50}). Cross - multiply: (x=0.7\times50). Calculate (0.7\times50=(7\times50)\div10 = 350\div10=35).

Answer:

C. 35