What is the missing value for the degrees of freedom for the "within" row (marked by a ?)?

The following tables show the make-up of students in a school's math club. Male Female Totals Freshmen 3 5 8 Sophomores 4 10 Juniors 7 5 12 Seniors 4 10 Totals 20 20 40 P(female I freshman)? 4 20

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what are the reasons to include omitted variables?

freshmen business students at a local university produced the results listed below. How many students took history and science, but not music? 2525 took history;2222 took science;2323 took music;1919 took history but not science;1010 took science and music;1212 took history and music;44 took all three

Use the Venn diagram to answer the question. In 2016, among the top 100 grossing movies in a particular country, 12 were rated PG-13 and earned over $100 million. The number of movies that were rated PG-13 that earned less than $100 million was 34. The number of movies that were not rated PG-13 that earned less than $100 million was 31. What was the number of movies that earned over $100 million and that were not rated PG-13? The number of movies that earned over $100 million and were not rated PG-13 was (Type a whole number.) ▪▪▪ U P E D 2

A 10-yr-old competes in gymnastics. For several competitions she received the following "All-Around" scores: 36.9, 35.4, 38.6, and 35.2. Her coach recommends that gymnasts whose "All-Around" scores average at least 38.1 move up to next level. What "All-Around" scores in the next competition would result in the child being eligible to move up? The child needs a score of (Choose one) V to move up to next level of competition.