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MUF0092 Mathematics Unit 2-SEM 1-2025
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The following parallel box plots compare the battery lives of two brands.
Which of the following statements (there may be more than one) support theargument that battery life and brand are related?
I the median battery life for brand A is clearly higher than for brand BII battery lives for brand B are more variable than brand AIII the distribution of battery lives for brand A is symmetrical with outliers butpositively skewed for brand B
The histogram below displays the testscores of a class of students.
The number of students is:
The stem plot below displays the distribution of testmarks obtained by a class of MUFY students.
The test was out of 65, and students require 50% to pass.
What percentage of students passed? (Give the numerical answer only, don't enter the % sign)
The histogram is best described as:
The scatterplot shows the weights at age 21and at birth of 12 women. The association isbest described as a:
The association between two variables y and x, as shown in the scatterplot above, is non-linear. Which of the following transformations is most likely to linearise the relationship?
The birth weight and weight at age 21 of eight women are given in the table below.
The value of the correlation coefficient is closest to:
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:
Is the variable birth weight the independent variable (IV) or the dependent variable (DV)?
(Write your answer as IV or DV only)
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: