A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer. Which survey methods are likely to be biased?Choose all answers that are correct.
A. A survey is sent to the customers who are on the pharmacy’s frequent buyer list.
B. One hundred people from the pharmacy’s customer list are selected at random, called on the phone, and asked.
C. Those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded.
D. Every 10th customer who enters the pharmacy on 1 day is selected and asked.
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Answer 1
Answer:
C- Often times, if someone is using a coupon, they just want the lowest price and don't care what toothpaste is considered "the Best."
The two-way table shows the number of girls and boys who are right-handed or left-handed. What percent of left-handed people are girls? % Right-handed Left-handed Girls 8 2 Boys 9 2
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There are a total of 4 left-handed people. 2 left-handed people are boys. 2 left-handed people are girls.
There are a total of 4 left handed people, 2 of which are girls.
2/4 = 1/2 = 50%
50% of left-handed people are girls.
Keith spent 1/5 of this money on a story book. He gave $26.80 to his brother and had 1/2 of his money left. How much money did he have left?
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Not really sure of this one but i think it's like this- 2/10 (money for story) + 3/10 (26.80 dollars to brother)= 1/2 of his money 3/10x=26.80 268=3x ; x= 89.33333.... 89.33 X 5/10= answer money left= (roughly) 44.67
1/5 = 2/10 1/2 = 5/10
2/10 of his money on a story book. Storybook is the variable x
$26.80 to his brother (5/10 of his money left)
5/10-2/10 = 3/10
$26.80x3/10= 8.04
He had $8.04 left.
A box contains bags of crisps. Each bag of crisps weighs 25 grams. Altogether, the bags of crisps inside the box weigh 1 kilogram. How many bags of crisps are inside the box?
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there would be 40 bags
There are 40 bags total
Which theorem proves that ΔMNO = ΔQPO?
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Answer:
C. is the correct answer.
2+2+3^19+(63/3) how come math is tiring me but science isn't
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Answer:
Can you explain this more
Step-by-step explanation:
2+2=4
3^19 = 1162261467
63/3 = 21
21+4=25
1162261467+25=1162261492
Question 1, I give thanks and 5 stars so you get more points!!!
Answers
On the first spinner, you have 5 equal pie pieces with A - E and nothing repeating so your chance of landing on any one of the pieces is 1/5.
The second spinner has 4 possibilities with no repeats so the chances of landing on any one of the pieces is 1/4.
The chances of spinning specifically c and 2 together would be
1/5 × 1/4 = 1/20
I first spinner there is a 1/5 chance to land on any them, though on the second one there is a 1/4 chance :D