help me answer the followings

A math conference has an attendance of 4950 people. Of these,2110 are college professors and 2575 are female. Of the college professors,960 are female.You randomly select anattendee,what is the probability that the attendee is a female or NOT a college professor.

A.0.75

B.0.77

C.0.38

D.0.81

QUESTION 12

1. Which of thefollowings is a classical probability?
2. A.There is 30%chance of rain today.
3. B.If you survey in the New York City, the probability of getting a Corona effected person is 2%.
4. C.If you randomly select a state in the map of USA,without any biasness,the probability that it will be Alabama is 2%(considering 50states).
5. D.According to the doctor, there is an 80% chance that your friend broken leg will be fixed.

question: Suppose you flip a coin and then roll a die.Which of the followings has a higher probability?

1. A.Get head on the coin and 3 on the die.
2. B.Get a head on thecoin and a prime numberon thedie.
3. C.Get a tail and an even number on the die.
4. D.Get a head and an odd number on the die.

QUESTION

In a school hockey team there are 4 players from grade 12, 3 players from grade 11, 2players from grade 10 and 2 players from grade 9. How many distinguishablecan they be positioned in the field?

A.576

B.34

C.39916800

D.69300

QUESTION 2

1. Find the standard deviation for the given data.Please note thatyou wonthave to get any class or set up any frequency distribution. You are directly given the x values and in another problem with the same data you will find out the mean. Consider that there sample data.

A.8.94

B.8.43

C.8.24

D.8.74

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