Practice Worksheet - MATH IN DEMAND

Practice Worksheet

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Math in Demand

 Make sure that students bubble in their answers for the front page (#1-7) and the back page (#8-14). The bubbles allow students to check their answers and results in a more confident student. In addition, it makes it a lot easier for you to do a quick "checking for understanding" when you have the answer key and can compare the bubbles shaded in.

Make sure that students show their work! Space is given so that students can demonstrate their knowledge of the concept. I do not give students credit if they do not show their work. Also, students need to give a nice reflection (2-3 sentences)!

You can decide if you want to use the score in the top left.

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Score (__/__)

Probability of Independent Name: ___________________

and Dependent Events

Date: __________

Worksheet Practice

Period: _____

Directions: Solve the following problems on probability of independent and dependent events. Round decimals to the nearest tenths. Make sure to bubble in your answers below on each page so that you

can check your work. Show all of your work!

1 There are 3 red and 3 2 What is the probability 3 What is the probability 4 What is the probability

blue marbles in a bag.

of flipping a coin twice

of rolling a 1 then 2

of flipping a coin three

What is the probability of and getting heads then tails?

on a die?

times and getting tails first

randomly selecting a blue

then heads twice in a row?

marble, putting it aside,

then a red marble?

5 There are 5 red and 3 6 There are 8 yellow

7 There are 2 orange, 3

green marbles in a

and 2 blue marbles in a

red, 4 yellow, 1 green,

bag. What is the probability bag. What is the probability and 2 blue candies in a bag.

of randomly selecting a red of randomly selecting a blue What is the probability of

marble, putting it aside, marble, putting it aside, then randomly selecting a red

then a green marble?

a yellow marble?

then blue candy given there

is no replacement?

Answers

Bubble in your answers below for problems #1-7.

25%

1.3%

30%

4.5%

5%

20%

26.8%

12.5%

16%

35%

23.4%

2.8%

13.9%

17.8%

? 2018 Math in Demand

8 What is the probability of randomly selecting a

red card, putting it aside, then a black card from a

deck of cards?

9 There are 3 red, 6 yellow, and 3 blue

marbles in a bag. What is the probability of randomly selecting in order a blue

marble, red marble, then a

yellow marble given no

replacement?

10 What is the probability of randomly drawing a

red 9 card, putting it aside, then drawing a queen from a standard deck of cards?

11 What is the probability of randomly drawing a

black 10 card, putting it aside, then drawing a red or black 10 card from a standard deck of cards?

12 There are 6 red, 5 yellow, and 4 green

marbles in a bag. What is

the probability of randomly selecting a marble that is not red, putting it aside, then selecting a red marble?

13 What is the probability of randomly drawing a black card, putting it aside, then a 4 from a

standard deck of cards?

14 What is the probability of randomly drawing a

5, putting it aside, a face

card, then a 9 from a

standard deck of cards?

Reflection: From this activity, I learned...

Answers

Bubble in your answers below for problems #8-14.

3.1%

3%

25.7%

4.2%

0.38%

2.2%

0.23%

25.3%

3.9%

0.1%

1%

3.6%

25.5%

0.3%

? 2018 Math in Demand

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