zayden has a jar of coins. he chooses a coin at random, notes what type of coin it is, and returns it to the…

zayden has a jar of coins. he chooses a coin at random, notes what type of coin it is, and returns it to the jar. in 15 trials, zayden chooses a penny 7 times.\nwhat is the experimental probability of choosing a penny based on the 15 trials?\n$\frac{7}{15}$\non the 16th trial, zayden chooses a nickel. what is the experimental probability of choosing a penny based on the 16 trials?\n$\frac{7}{16}$\non the 17th trial, zayden chooses another penny. what is the experimental probability of choosing a penny based on the 17 trials?

zayden has a jar of coins. he chooses a coin at random, notes what type of coin it is, and returns it to the jar. in 15 trials, zayden chooses a penny 7 times.\nwhat is the experimental probability of choosing a penny based on the 15 trials?\n$\frac{7}{15}$\non the 16th trial, zayden chooses a nickel. what is the experimental probability of choosing a penny based on the 16 trials?\n$\frac{7}{16}$\non the 17th trial, zayden chooses another penny. what is the experimental probability of choosing a penny based on the 17 trials?

Answer

Explanation:

Step1: Recall experimental - probability formula

Experimental probability (P=\frac{\text{Number of favorable outcomes}}{\text{Total number of trials}})

Step2: Calculate for 17 trials

Initially, in 15 trials, penny was chosen 7 times. In the 16th trial, a nickel was chosen (no change to penny - count), and in the 17th trial, a penny was chosen. So the number of favorable outcomes (choosing a penny) is (7 + 1=8), and the total number of trials is 17. The experimental probability (P=\frac{8}{17})

Answer:

(\frac{8}{17})