Mathematics, 01.09.2019 08:50 ashley968
Matilda asked 20 random people in the street if they would like to discuss what they want to do during the summer break. seven of them said yes.
how is this sample biased?
(1)she should have asked more people.
(2)the people who chose to participate might not be similar to the people who didn’t.
(3)the number of people who agreed was too small.
(4)she should have asked girls only.
Answers: 2
Mathematics, 21.06.2019 16:00
Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187
Answers: 1
Mathematics, 21.06.2019 19:30
What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4
Answers: 1
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Mathematics, 21.06.2019 21:40
Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.
Answers: 3
Matilda asked 20 random people in the street if they would like to discuss what they want to do duri...
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