Question

CAN SOMEONE CHECK MY ANSWERS? The table shows the results of spinning a spinner several times.

Outcome: A B C D E
Frequency:3 5 2 0 2
What is the experimental probability of spinning a D or E?

A. 1/4

B. 1/5

C. 1/6

D. 2/5 <---My choice.

Answer 1

Isabelle wanted to display the number of points she had scored in her first ten basketball games in such a way that the individual point values were easily visible and arranged in order from lowest to highest.



Which is the best type of data display for this information?









A.
circle graph







B.
line graph







C.
stem-and-leaf plot







D.
bar graph <---My choice.

Answer 2

The city council wants to survey the population of the city to determine how people would feel about building a new baseball stadium.



Which survey method is most likely to give a biased result?









A.
The council surveys every 10th person in the city phone directory.







B.
The council runs a computer program to generate a random list of citizens to survey.







C.
The council surveys people leaving a baseball game at the city's old stadium. <---My choice







D.
The council divides the city into districts and randomly selects people to survey from each district.

Answer 3

The manager of a basketball arena randomly selected 150 fans and asked if they were pleased with the new selection of food offered in the arena. In this sample, 120 fans said that they were pleased.



How many of the 8,000 fans at the game could be expected to be pleased?









A.
6400







B.
7850







C.
7880







D.
7970

I'm not sure about this one...