A of malignant tumor occurs in 11 children in a millionso its probability is 0.000011 Four cases of this tumor occurred in a certain townwhich had children a. Assuming that this tumor occurs as usual, find the mean number of cases in groups of 11,170 children b. Using the unrounded mean from part)find the probability that the number of tumor cases in a group of 11170 children is 0 or 1 cWhat is the probability of more than one case? the cluster cases appear to be attributable to random chance? Why or why not?

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

What is the x-intercept and y-intercept of the equation 2x+1. 2o

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.