Answer:
3.
Step-by-step explanation:
I am pretty sure it is D.
All the other ones don't affect the second activity...
Hope I helped...
Answer: B
Step-by-step explanation: If you multipley both 3 and 5 by the same number 4 you get the ratio 12:20
…did you post it correctly? Try again on another question, it shows a blank screen and when you click on it it turns black :/
Probability of at-least 2 girls = Probability of 2 girls + Probability of 3 girls + Probability of 4 girls + Probability of 5 girls = 1 - (Probability of no girl + probability of 1 girl)
We know:
<span>probability when no girl = 5C0 * (1/2)^0 *(1/2)^5 = 0.03125
probability when one girl = 5C1 * (1/2)^1 *(1/2)^4 = </span>0.15625<span>
probability when at least 2 girls = 1-(0.03125+</span>0.15625<span>)
= 0.8125(approx)
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