Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
The Ajax phone company offers 3 basic models of telephone, (princess, desk and wall). Each model is available in green, beige, red, black, or white and can be purchased with either touch-tone or rotary dial.
How many variations of phones can you buy? |
3 x 5 x 2= 30
|
|
|
A sporting goods store sells 9 different styles of running shoes, each available in 2 colors. How many combinations of color and style are there?
|
9 x 2= 18
|
|
|
Draw a tree diagram to show the total number of ways of choosing an outfit from the 2 pairs of pants and 3 shirts.
|
3 x 2= 6
|
|
|
A nationwide survey found that 72% of people in the United States like pizza. If 3 people are selected at random, what is the probability that all three like pizza?
|
Let L represent the event of randomly choosing a person who likes pizza
p(L) x p(L) x p(L)= (0.72) x (0.72) x (0.72)= 0.37= 37% |
|
|
A school survey found that 9 out of 10 students are chosen at random with replacement, what is the probability that all three students like pizza?
|
p(L) x p(L) x p(L)= 0.90 x 0.90 x 0.90= 72.9%
|
