A survey asked 20 mobile phone dealers how many mobile phones were sold during the previous week. Their answers are displayed in
1 answer:
The best type of chart for quickly deriving the mode of a sample data is called the Stem-and-Leaf Plot.
<h3>What is a Stem-and-Leap Plot?</h3>
In statistics, the Stem-and-Leaf Plot is an easy-to-make easy-to-read kind of graph that is derived from the table holding the sample data.
The Box-and-Whisker Plot on the other hand is best for visually depicting the five-number summary of any set of data, which are:
- Minimum
- First Quartile
- Median (Second Quartile)
- Third Quartile; and
- Maximum.
It is to be noted that referenced plots are not indicated hence, the general answer.
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Answer:
- see below for a diagram
- 15 m
Step-by-step explanation:
Stephanie is 1.8/1.2 = 1.5 times as tall as her shadow is long. We expect the same is true of the wind turbine.
The wind turbine's shadow is 10 m long, so its height is 1.5·(10 m) = 15 m.
The wind turbine is 15 m tall.
ANSWER
EXPLANATION
Let the function that represent the graph be:
The parabola passes through the points (-2,8), (0,2), and (1,5).
These points must satisfy the function.
For (-2,8), we have
This implies that that,
For (0,2), we have,
This implies that,
For (1,5), we have
This implies that,
Put c=2 into equation (1) and (2).
Add equation (3) and equation (4)
Put a=2 into equation (4).
Therefore the function is