Mathematics, 22.05.2021 04:20 hit89
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Statistics 2
The line graph below shows the daily production of a private oil producer, in hundreds of barrels, over a five day period.

Copy and complete the table to show the daily oil production.
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Oil
Production
(Hundreds of barrels)
3
4
Between which two consecutive days was there the greatest increase in oil production?
What is the average oil production over the five day period? (6 marks)
Twenty bags of coconut milk powder are weighed. The mass of each bag, to the nearest kg, is recorded as shown below.

Mass (kg)
Midpoint, x
Frequency , f
fx
1-10
5.5
5
27.5
11-20
21-30
31-40
41-50
State the lower class limit for the class interval 31-40.
State the lower class boundary for the class interval 31-40.
State the class width for the class interval 31-40.
Copy and complete the table above.
Hence, calculate the mean mass of milk powder in each bag.
(give your answer to 1 decimal place) (11 marks)
The table below shows the favourite fast foods of some form four students.
Food
Frequency
Doubles
30
Fried Chicken
25
BBQ
12
Pizza
13
Calculate the sector angles that would represent each food in a pie chart.
(8 marks)
Answers: 3
Mathematics, 21.06.2019 16:00
Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?
Answers: 1
Mathematics, 21.06.2019 16:50
Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.
Answers: 3
Mathematics, 21.06.2019 19:00
The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.
Answers: 1
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