250 employees in an organization were surveyed, and the following data was collected about their hair color and height: hair color height less than 175 cm 175-180 cm above 180 cm total black 38 32 30 100 brown 27 24 19 70 blonde 21 33 26 80 total 86 89 75 250 which inference can be made from this two-way table? a. being above 180 centimeters and having black hair are independent of each other. b. being above 180 centimeters is dependent on having black hair. c. having black hair is dependent on being above 180 centimeters. d. being above 180 centimeters and having black hair are the same.

Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.