I just need very simple to the point answers

6) The histogram shows the heights of the students in Mr Lee's math class. Student Height 101 Frequency 130 140. 150 160 170 180 190 Height (cm) a) How many students are in the class? b) How many students are between 160 cm and 170 cm tall? c) What percentage of students are shorter than 160 cm? d) What fraction of students are taller than 150 cm? /4 K 7) In a probability experiment, 15 out of 50 trials were successful. Determine the experimental probability of a successful trial. Express your answer as a fraction in lowest terms, as a percent, and as a decimal.8) Two coins were tossed a total of 200 times. The results are shown in the graph. Find the experimental probability for each event. Two Coins Tossed a) two heads b) one head 100 95.. Frequency 60 60 45 40 20 12 T 0 1 2 Number of Tails9) Ann, Bob and Cathy are posing for a group photograph. a) What is the probability that Ann will not be standing between Bob and Cathy? /1 T b) What is the probability that Bob and Cathy will be standing beside each other? /1 T c) Are the probabilities for part a) and b) related Explain? /1 C 10) You toss a coin 10 times. It turns up heads eight times. a) What is the experimental probability of turning up heads? b) What is the theoretical probability of turning up heads? c) If you tossed the coin several more times, would you expect the experimental probability to increase or decrease? Explain. 13 T12) Mathew has black socks, white socks, blue jeans, dress pants, 3 red shirt, 3 green shirt and a T-shirt. 3) Draw a tree diagram showing his choice for socks, pants, and a shirt. b) Find the probability that Mathew selects at random. i) Blue jeans and the T-shirt ii) white socks iii) black socks, dress pants, and a red shirt 13) Canadian researchers have found that that the number of women with multiple sclerosis (MS) has risen compared to the number of men with the disease. In the 1930's, there were 1.9 females with MS for every male. In the 1980's , there were 3.2 Women with MS for every man with MS. a) For Canadians born in the 1930's, what percentage of those with MS are female? b) For Canadians born in the 1980's, what percentage of those with MS are male? c) Divide your answer in part b by the answer in part a. Now divide 3.2 by 1.9. Which of these calculations appears to indicate a greater increase? Justify your answer. d) Why do you suppose the statistics were presented using the numbers 1.9 and 3.2 instead of using percentage? /4 A 14) A game of chance involves the rolling of two dice. You win $5 if you roll doubles, otherwise you have to pay $1. If you played this game repeatedly, would you expect to win or lose money? Justify your