Question

Круг разделён на секторы содержащие 40 40 40 40 40 40 40 40 40 в каждом секторе записано в соответсвующем порядке одно из чисел 11 12 13 14 51 16 17 18 19 в центре круга запускают волчок со стрелкой найдете вероятность того что после остановки волчка стрелка покажет простое число

Answer 1

4/9 с вероятностью 49

Answer 2

Calculating the Probability of the Arrow Landing on a Prime Number

To calculate the probability of the arrow landing on a prime number after the spinner stops, we need to determine the total number of sectors on the spinner and the number of sectors that contain prime numbers.

According to the information provided, the spinner is divided into 10 sectors, each containing the numbers 11, 12, 13, 14, 51, 16, 17, 18, 19 in that order. We can see that the numbers 11, 13, 17, and 19 are prime numbers.

To calculate the probability, we divide the number of sectors with prime numbers by the total number of sectors on the spinner.

Total number of sectors: 10

Number of sectors with prime numbers: 4

Therefore, the probability of the arrow landing on a prime number is 4/10 or 2/5.

Please note that the information provided is based on the assumption that the spinner is evenly divided into sectors and the numbers are distributed as described.