Subject: Probability and Statistics

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Activity 5. What is the mathematical term for the division sign (:)? 2 8 0 15 15 15 Directions: To answer the question above, solve the following problem by answering the items that follow. Then, match your answer to the decoder. Problem: Number cards 1 through 30 are shuffled and placed on the table face down. One card is chosen at random. What is the probability that the number chosen is: E) a multiple of 3 or a multiple of 4? L) a multiple of 3 and a multiple of 4? O) an even number or an odd number? U) an even number and an odd number? S) a multiple of 5 or contains the digit 2? B) a multiple of 3 and contains the digit 2? Activity 6. Out of the 250 Grade 10 students, 120 liked mathematics (M), 160 liked science (S) and 75 liked both mathematics and science. a) Draw a Venn diagram illustrating this problem. If a student is selected from this group, what is the probability that b) he/ she liked mathematics or science? c) he/ she did NOT like any of the two subjects?Activity 7. What do you call the division slash (/)? 9 7 21 17 63 1 3 50 20 100 25 100 10 50 Directions: To answer the question above, solve the following problem by answering the items that follow. Then, match your answer to the decoder. Problem. Out of 500 surveyed students, 225 liked pop music, 215 liked rock music, 175 liked country music, 90 liked pop and country music, 125 liked pop and rock music, 110 liked rock and country music and 50 liked pop, rock, and country music. The Venn diagram below shows the relationship of these sets of data. Pop Rock 60 75 30 50 40 60 25 160 Country If a student is selected at random from this group, what is the probability of choosing a student who liked I) country music? E) rock music only? V) pop and country music? U) pop or rock music? R) rock but not country? G) pop or rock or country music? L) pop and rock and country music