1females in a certain class rated their intelligence with a

Assignment Help Basic Statistics

Reference no: EM13353631

1. Females in a certain class rated their intelligence with a mean of 6.5. The males in the same class rated their intelligence with a mean of 7.25. The difference in the mean ratings (male - female) was

A. -0.75 points.
B. 0.75 points.
C. 13.75 points.

2. Females in a certain class rated their intelligence with a mean of 6.5 with standard deviation 1.12. The males in the same class rated their intelligence with a mean of 7.25, with standard deviation 1.50. The standard deviation of the difference in the ratings (male - female) was

A. 0.38.
B. 3.50.
C. 1.87.
29. Most people think babies are equally likely to come as either a boy or a girl. This is not true. Actually, about 51.3% of all babies are boys. If a family has two children (not twins), what is the chance both children are boys?

A. 25%
B. 102.6%
C. 26.3%

3. Most people think babies are equally likely to come as either a boy or a girl. This is not true. Actually, about 51.3% of all babies are boys. If a family has two children (not twins), what is the chance they have one boy and one girl?

A. 0.25
B. 0.50
C. 0.24

Reference no: EM13353631

Questions Cloud

1you decide to test a friend for esp using a standard deck : 1.you decide to test a friend for esp using a standard deck of 52 playing cards. such a deck contains 13 spades 13

1suppose that you are a student worker in the statistics : 1.suppose that you are a student worker in the statistics department and they agree to pay you using the random pay

1a refrigerator contains 6 apples 5 oranges 10 bananas 3 : 1.a refrigerator contains 6 apples 5 oranges 10 bananas 3 pears 7 peaches 11 plums and 2 mangos. imagine you stick your

1a psychology instructor asked the 100 females in her class : 1.a psychology instructor asked the 100 females in her class to rate their intelligence on a scale of 1 to 10. the

1females in a certain class rated their intelligence with a : 1.females in a certain class rated their intelligence with a mean of 6.5. the males in the same class rated their

1on a certain airline the chance the early flight from : 1.on a certain airline the chance the early flight from atlanta to chicago is full is 0.8. the chance the late flight

1 a psychology instructor asked the 100 females in her : 1. a psychology instructor asked the 100 females in her class to rate their intelligence on a scale of 1 to 10. the

1the weight of medium-sized oranges selected at random from : 1.the weight of medium-sized oranges selected at random from a large bin of oranges at the local supermarket is a

1suppose we toss a penny and a nickel let a be the event : 1.suppose we toss a penny and a nickel. let a be the event that the penny is a head and b be the event that the nickel

User Account

All Pages