Unit 5 Mastery Quiz 1

Quiz by Latoya Radway

Grade 7

Mathematics

Common Core

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10 questions

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- Q1A restaurant owner wants to know how often the customers in her restaurant eat out. Which sample will likely give the most reliable results?50 male customers arriving at different times two days in a row100 customers selected at random, arriving at different times each day for the duration of 1 weekThe first 50 customers who come into the restaurant on MondayEvery 10th customer to come into the restaurant on a randomly selected Saturday120s
- Q2A restaurant owner wants to know how often the customers in her restaurant eat out. Which sample will likely give the most reliable results?Every 10th customer to come into the restaurant on a randomly selected Saturday50 male customers arriving at different times two days in a rowThe first 50 customers who come into the restaurant on Monday100 customers selected at random, arriving at different times each day for the duration of 1 week30s
- Q3Mr. Wynn gave the same test to his morning class and his afternoon class. Their scores are listed below: Morning class: 96, 76, 90, 88, 90, 93, 79, 80, 82, 86 Afternoon class: 70, 78, 80, 78, 86, 90, 76, 72, 70, 79 What is the mean of the morning class’ scores?779 Points77.9 Points860 Points86 Points120s
- Q4The test scores of the students in Mr. Duffy’s class are shown on the line plot below. The range in Ms. Guzman’s class was larger than Mr. Duffy’s class. Which line plot could represent the scores in Ms. Guzman’s class?CADB120s
- Q5The frequency chart shows the distribution of defects for the machines used to produce chocolates. Which dot plot represents the frequency table?DCAB120s
- Q6The students in Mr. Warnock’s class collected cans for recycling one week. Below is the data for each group. Group A:11, 9, 12, 14, 8, 7, 13, 15, 12, 9 Mean = 11 Group B: 18, 12, 26, 14, 9, 19, 21, 24, 15, 12 Mean = 17 What is the difference in the MAD between Group A and Group B?4.62.462.2120s
- Q7There is a 20% chance that customers at a café will order pie. If the café has 420 customers this week, how many can be expected to not order pie?84 People336 People33.6 People8.4 People120s
- Q8What is the difference between the median for each data set shown in the box plot below?2463120s
- Q9Which survey would result in a biased sample?Every 4th person at a football game is asked to name their favorite sport.Every 5th person in a library is asked whether they prefer red or green applesEvery 10th person at a train station is asked to name their favorite action movie.Every 8th person on the street is asked whether they have a pet.120s
- Q10Jayshawn surveyed the students in his class to determine how they scored in a game. He displayed his results in the table shown below. Which histogram represents the data in the table?DACB120s