1 Normal T No Spa... Heading Subtitle Subtl Paragraph 1. Find the probability th

Question

1 Normal T No Spa... Heading Subtitle Subtl Paragraph 1. Find the probability that the number obtained when a die is rolled is an odd number. Styles 2. Which of the following values cannot be a probability? Select all that a A. 0.001 B. 0.5 C. 1.001 D. 0 E. 1 F. 25% 3. Julie and Scott each toss a coin. What is the probability that they both obtain heads? 4. A teacher asks 25 of her students to write down their favorite color. The results are presented below: Color frequency Red //8 Blue /12 Green 5 If a student is selected at random from the above group of 25, what is the probability that this student likes the red color? 5. The table below shows students distribution per grade in a school. Grade freguency 1 50 230 340 42 5 38 50 6 If a student is selected at random from this school, what is the probability that this student is in fourth grade? Rat loss BlacK

Explanation / Answer

Ans:

1)Sample space={1,2,3,4,5,6}

There are 3 favourable outcomes for outcome being odd numbers.

P(odd number)=3/6=0.5

2)Probability can take any value between 0 and 1(inclusive)

Probability value can not be negative.

So,options A(-0.001) and C(1.001) are not possible.

3)P(red color)=8/25=0.32

4)Total number of observations,N=50+30+40+42+38+50=250

P(4th grade)=42/250=0.168

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