Tema
Q:
Exercice 3: \( \quad(\quad / 2 \) pts)
Un pâtissier a vendu l'an dernier 10000 gâteaux à \( 10 € \)
et 100 gâteaux de mariage à \( 1000 € \).
Cette année, il vend 10000 gâteaux à \( 8 € \) et
100 gâteaux de mariage à \( 1300 € \).
II dit: : "Mes clients sont contents: le prix médian de
mes gâteaux a baissé. Mon comptable est content:le
prix moyen de mes gâteaux a augmenté.»
Que peut-on penser de ces affirmations?
Q:
5 The data below shows the number of aces served by a player in each of their grand slam
tennis matches for the year.
\( 15 \quad 22 \)
11
17
15
Q:
5 The data below shows the number of aces served by a player in each of their grand slam
tennis matches for the year.
\( \begin{array}{lllllllllllllll}15 & 22 & 11 & 17 & 25 & 25 & 12 & 31 & 26 & 18 & 32 & 11 & 25 & 32 & 13 \\ \text { a } & 10\end{array} \)
Construct a stem-and-leaf plot for the data.
b From the stem-and-leaf plot, find the mode and median number of aces.
c is the data symmetrical or skewed?
Q:
5 The data below shows the number of aces served by a player in each of their grand slam
tennis matches for the year.
\( \begin{array}{lllllllllllll}15 & 22 & 11 & 17 & 25 & 25 & 12 & 31 & 26 & 18 & 32 & 11 & 25 \\ 32 & 13 & 10\end{array} \)
a Construct a stem-and-leaf plot for the data.
b \( \begin{array}{ll}\text { From the stem-and-leaf plot, find the mode and median number of aces. }\end{array} \)
Q:
2) What is the sum of squared errors for the
regression line give by \( Y=2+3 X \) ?
Q:
What are the squared errors for the regression line
given by \( Y=2+3 X \) ? Type as a comma-
separated list: \#, \#, \#, \( \# \)
Q:
5. In a group of consultant or sales manager, it was found that 80 are
mantantants, 110 are management consultants and 130 are sales managers, 25
are accountants as well as sales managers, 70 are management consultants as
well as sales managers, 10 are accountants as well as management
consultants as well as sales managers. Find the number of those people who
are accountants as well as management consultanis but not sales managers.
Q:
Explain what a negative slope indicates about the trend of a data set represented by a graph.
Q:
16. Which number occurs more often than the others?
\( 1,2,3,3,3,4,5,5,5,5,7,9,10,10 \)
Q:
13. Which of the following data sets can I graph on a histogram?
The number of people who drive fords, Cheys. and Toyotas.
Income based on ethnic background.
How much smarter rats are than dogs.
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