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MUF0092 Mathematics Unit 2-SEM 1-2025
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A least squares regression line of the formy = a+ bx is fitted to the data set shown below.
The equation of the line is:
The weights (in kg) carried by the horses in a handicap race are given below.
60 57 57 55 54 53 53 53 52 52 51.5 51
What is the interquartile range?
(Write the value only, don't include the units)
The scatterplot shows the weights at age 21and at birth of 12 women. The association isbest described as a:
Estimate the mean for the data below correct to 1 decimal place:
The following data were collected for two related variables x and y.
A scatterplot indicates a non-linear association. The data is linearised using a logx transformation and a least squares line is then fitted. The equation of this line isclosest to:
Find the median for the table below:
Estimate the mean for the data below correct to 1 decimal place:
Calculate the mean for the table below:
A group of 17 people was asked the number of years they have worked for their current employer. Their responses are summarised in the following stem plot.
What is the median number of years that people have worked for their current employer? Just write the numerical value.
A group of 17 people was asked the number of years they have worked for their current employer. Their responses are summarised in the following stem plot.
What is the interquartile range of the number of years that people have worked for their current employer? Just write the numerical value.