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DiKsa [7]
3 years ago
9

Janine wishes to conduct a poll to predict how many students will vote for her for class president. Which polling methods are li

kely to be biased? Choose all answers that are correct. A. Five people in each of Janine’s classes are selected and asked for whom they intend to vote. B. From a list of all students in Janine’s grade, 25 students are selected at random and asked for whom they intend to vote. C. Every 10th student from a list of all students in Janine’s grade is selected and asked for whom the student intends to vote. D. Janine chooses 5 of her friends and asks each to select another 5 students. These 25 students are asked for whom they intend to vote.
Mathematics
1 answer:
vredina [299]3 years ago
4 0
D since she is asking her friends who are just going to ask their friends
A. since only 5 are asked
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Answer:

36 (maybe...)

Step-by-step explanation:

Technically there is no way to answer this question, it says that 120 ADULTS were surveyed and then asks how many STUDENTS rank themselves as introverts.  But if we a supposed to assume that all adults are students:

The ratio of 3:7 means that for every 3 introverts, there are 7 extroverts.

In other words for every 10 people (total introvert+extrovert) there are 3 introverts.

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3 years ago
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Answer: 5.32

Step-by-step explanation:

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4 years ago
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Elanso [62]

9514 1404 393

Answer:

  1a: $84; 1b: 30,000A +15,000B; 1c: 37,000A +18,500B

  2: 4,000 composite units

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We assume your "composite unit" consists of the smallest set of units in the ratio in which they are sold.

<h3>1) </h3>

A "composite unit" is 1B +2A. The contribution margins are the difference between the selling price and the variable cost per unit:

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(b) The break-even point is the number of composite units that have a total contribution margin equal to the total fixed costs:

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<h3>2)</h3>

Contribution margins per unit are ...

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A composite unit is 3H +2C +I, so the contribution margin per composite unit is ...

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The break-even point is 52,000/13 = 4,000 composite units

4 0
3 years ago
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Answer:

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