expected number of pens without ink is:
Q: How many different choices of 5 toppings are there
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A box contains nine whiteboard markers. Three of the markers have no ink. If a student selects two markers from the box without replacement the expected number of pens without ink is:
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- A professor wanted to study the number of hours statistics students spend studyingstatistics each week. Out of 19 statistics sections at Santa Ana College, the professorsurveyed each student from 3 randomly selected sections. What is the largest group ofstudents the results of this study can represent?a. All Santa Ana College studentsb. All Santa Ana College students taking a math classc. All Santa Ana College students taking a statistics classd. Students in the three sections the professor surveyedA survey was conducted at UP Manila where 80 students were randomly asked whether they liked hamburgers or spaghetti for their snacks. 52 of the students say they like hamburgers, 40 like spaghetti and 10 do not like either of the hamburger or spaghetti. How many students like only hamburger or only spaghetti? Answer isA child is building a tower with colored bricks. She has 22 bricks: 6 yellow, 6 blue, 1 green, and 9 red. She selects a brick at random to stack on the tower. Enter all answers as decimals and round to four places.
- A jar contains four blue marbles numbered one to four. The jar also contains four red marbles numbered one to four. You randomly pick a marble. It is blue or has an even number.In a room of 470 people, 40% of them were born in November. How many people in the room have a November birthday (to the nearest whole person)? 188 people 12 people 9 people 19 people100 people were surveyed and asked if they own a smart phone. A person is selected at random from the survey. Here are the survey results. Female Male Total Owns a smart phone 46 70 30 Does not own a smart phone 18 Totals 64 24 12 36
- People often match their behavior to their social environment. One study of this idea first established that the type of music most preferred by black college students is R&B and that white college students' most preferred music is rock. Will students hosting a small group of other students choose music that matches the makeup of the people attending? Assign 9090 black business students at random to three equal‑sized groups. Do the same for 9696 white students. Each student sees a picture of the people he or she will host. Group 1 sees six blacks, Group 2 sees three whites and three blacks, and Group 3 sees six whites. Ask how likely the host is to play the type of music preferred by the other race. Use ANOVA to compare the three groups to see whether the racial mix of the gathering affects the choice of music.please answer all partsA deli offers 12 different toppings. How many different choices of 5 toppings are there?
