Kari makes a wage of $10.25/ hour. a. If “p” represents her total pay and “t” represents the time she works in hours, write an
equation to represent her pay. ( 1 mark)
b. Use the equation to determine how much Kari would be paid if she worked 25 hours. (1
mark)
c. Last week, her gross pay (pay before deductions) was $194.75, how many hours did she
work? (1 mark)

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.

Complete the steps to find 4.830 ÷ 5

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed