Plz hurry it's ! a box contains twenty-five cards numbered 1 through 25. one card is to be randomly drawn from the box. what is the probability that the card drawn will show a multiple of 5, a multiple of 6, or a multiple of 7? a. 12/25 b. 9/25 c. 3/25 d. 1/25

12/25

Step-by-step explanation:

There are 5 multiples of 5, 4 multiples of 6, and 3 multiples of 7.

5+4+3=12

There are 25 cards

12/25

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: