7th Grade Math Probability Unit Test

<p>A spinner is divided into `5` equal sections. </p><spinner data-items='[{"type":"text","value":"A"},{"type":"text","value":"B"},{"type":"text","value":"C","arrow":true},{"type":"text","value":"D"},{"type":"text","value":"E"}]' data-size="large"></spinner><p>When the spinner is spun, what is the probability of the events listed below? </br><highlight data-color="#666" data-style="italic">Write your answer as a fraction, or a decimal rounded to the nearest hundredth, if necessary. </highlight></p> <selectivedisplay data-props='{"show_in_create":true, "show_in_problem_qa": true}'><ul><li> P(spinning B)</li><li>P(not spinning D)</li><li>P(spinning A or C)</li><li>P(spinning E and D) </li></ul></selectivedisplay>

<p>You roll a fair `6`-sided die. </p><dice3d ></dice3d> <p>What is the probability of each event listed below? </br><highlight data-color="#666" data-style="italic">Write your answer as a fraction, or a decimal rounded to the nearest hundredth, if necessary.</highlight> </p><selectivedisplay data-props='{"show_in_create":true, "show_in_problem_qa": true}'><ul><li>P(rolling a `3` and `6`)</li><li>P(rolling a number < `2`)</li><li>P(rolling a number >= `1` )</li><li>P(rolling a prime number)</li></ul></selectivedisplay>

<p>You roll a fair `6`-sided die. </p><dice3d ></dice3d> <p>What is the probability of each event listed below? </br><highlight data-color="#666" data-style="italic">Write your answer as a fraction, or a decimal rounded to the nearest hundredth, if necessary. </highlight></p></p><selectivedisplay data-props='{"show_in_create":true, "show_in_problem_qa": true}'><ul><li>P(not rolling a `6`)</li> <li>P(rolling a number >= `5`)</li> <li>P(rolling a number <= `4` )</li> <li>P(rolling a `1` or `6`)</li> </ul></selectivedisplay>

<p>The spinner below has `6` equal sections. </p><spinner data-items='[{"type":"text","value":"A"},{"type":"text","value":"A"},{"type":"text","value":"B"},{"type":"text","value":"B"},{"type":"text","value":"C"},{"type":"text","value":"C","arrow":true}]' data-size="large"></spinner><p>What is the probability of spinning A or B?</br><highlight data-color="#666" data-style="italic">If necessary, round your answer to 2 decimal places. </highlight></p>

<p>You roll a fair `6`-sided die. </p><dice3d ></dice3d><p>What is the probability of each event listed below? </br><highlight data-color="#666" data-style="italic">Write your answer as a fraction, or a decimal rounded to the nearest hundredth, if necessary. </highlight></p><selectivedisplay data-props='{"show_in_create":true, "show_in_problem_qa": true}'><ul><li>P(rolling a number >= `1`) </li><li>P(rolling a `2` or `6`) </li> <li>P(rolling a number >=`3`) </li> <li>P(rolling a `1` and `5`) </li></ul> </selectivedisplay>

<p>A pencil case contains `4` red markers, `3` yellow markers, `2` green markers, and `3` blue markers. One marker is chosen at random. </p><p>What is the probability that the marker chosen is not yellow? </br><highlight data-color="#666" data-style="italic">If necessary, round your answer to 2 decimal places. </highlight></p>

<p>Last week, a car dealership sold </p><ul><li>`12` sedans,</li><li> `5` hatchbacks, </li><li>`3` SUVs, and</li><li> `5` trucks.</li> </ul><p>What is the probability that the first vehicle sold this week is a hatchback or a sedan?</p>

<p>Nathan spins a spinner that is split into `4` equal sections painted purple, white, blue, and pink. </p><ul><li>The spinner lands on purple `100` times,</li><li>on white `200` times,</li><li> on blue `150` times, and</li><li> on pink `50` times. </li></ul><p>What is the probability that Nathan's next spin will land on any section of the spinner other than blue?</p>

<p>If a fair six-sided die is rolled one time, which best describes the probability of the die landing on a `4`?</p><dice3d></dice3d><selectivedisplay><ul><li>Impossible </li><li>Unlikely</li><li>`50`/`50` chance </li><li>Likely</li><li>Certain </li></selectivedisplay>

<p>A bag contains `8` black balls, `12` yellow balls, and `9` red balls. Quiana chooses one ball at random from the hat. </p><p>Which best describes the probability that the ball that Brenna chooses will be a red one?</p><selectivedisplay><ul><li>Impossible </li><li>Unlikely</li><li>`50`/`50` chance </li><li>Likely</li><li>Certain </li></selectivedisplay>

<p>The spinner has `6` equal sections.</p><spinner data-items='[{"type":"text","value":"A"},{"type":"text","value":"B"},{"type":"text","value":"C"},{"type":"text","value":"D"},{"type":"text","value":"E"},{"type":"text","value":"F","arrow":true}]' data-size="large"></spinner> <p>If you spin it `312` times, how many times would you expect to spin A?</p>

This morning at the Everyday Donut Shop there have been 20 chocolate donuts, 80 glazed donuts, and 100 jelly donuts that have been sold. Based on this data, how many of the next 1000 donuts that are sold by Everyday Donut Shop would you expect to be chocolate?

At a souvenir shop inside a state park, there were 20 souvenirs yesterday. Of these souvenirs, 4 were refrigerator magnets, 13 were key chains, and 3 were coffee mugs. Based on this data, how many of the next 15 souvenirs sold by the shop would be refrigerator magnets?

For a school project, Samuel went to the library on Saturday to record the section of the library that people visited. He noted this information about the people who visited the library: 318 people went to the Youth Wing 366 people went to the Social Issues section 309 went to the Fiction and Literature section On Sunday, the library had 662 total visitors. Based on the information Samuel recorded on Saturday, how many of these people could be expected to go to the Fiction and Literatures section? Round your answer to the nearest whole number.

<p>What is the probability of each of these events?</p><ul><li>Rolling a `1` on a `6` sided die, numbered `1-6`.</li><li>Spinning an arrow on a spinner with `5` equal sections labeled green, yellow, blue, purple, and red, and the arrow landing on green. </li><li>Choosing a strawberry cupcake from `3` vanilla cupcakes, `1` strawberry cupcake, and `4` chocolate cupcakes. </li></ul><p>Which event is most likely to occur?</p>

<p>What is the probability of each of these events?</p><ul><li>Rolling a prime number on a `6` sided die, numbered `1-6`.</li><li>Spinning an arrow on a spinner divided into 5 equal sections labeled `A`, `B`, `C`, `D`, `E`, and the arrow NOT landing on `E`.</li><li>Picking a fruit chew or a sour candy out of a box of candy containing `3` chocolate, `2` fruit chews, `2` pack of bubble gum, and `2` sour candies.</li></ul><p>Which event is least likely to occur?</p>

<p>Ron is a kindergarten student. During snack time, he has the choice of `2` different drinks, apple juice or orange juice, and `3` different snacks, cookies, pretzels, or goldfish crackers. </p><p>If Ron randomly chooses `1` drink and `1` snack, what is the probability that Ron chooses apple juice and cookies for his snack?</p>

<p>Jack is tossing a coin and spinning a spinner with `4` equal sections.</p><bytecoin data-props='{"size":"medium","face":"tails"}'></bytecoin><bytecoin data-props='{"size":"medium","face":"heads"}'></bytecoin><spinner data-items='[{"type":"text","value":"A","arrow":true},{"type":"text","value":"B"},{"type":"text","value":"C"},{"type":"text","value":"D"}]' data-size="medium"></spinner><p> What is the probability that the coin will land on heads OR the spinner arrow will point to B?</p>

<p>Makayla won a game at the fair and earned a prize! There are `4` different types of stuffed animal prizes she can choose from and each animal comes in `3` different colors. The `4` types of stuffed animal prizes are a dog, a lion, a bear, and a crocodile. The `3` different color options are blue, yellow, and green. </p><p>If Makayla randomly chooses a prize from the animal selection, what is the probability that Makayla will choose a lion that is not blue in color?</p>

<p>The new manager of a restaurant wants to update the menu but wants to focus on only one section at a time. He might choose to research new options for the appetizer, main course, or dessert sections of the menu. Then he must decide if he should be looking for menu options that are vegan, organic, or gluten-free. </p><p>If the manager randomly chooses `1` section and `1` option to research, what is the probability that he will be looking for vegan items on the dessert menu?</p>