HELP PLEASE , ASAP ; 100 POINTS
2 answers:
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Answer:
a) 23 °C
b) 5.81 m² (2 dp)
Step-by-step explanation:
<h3><u>Part (a)</u></h3>This set of data is presented as a <u>Dot Plot</u>.
The frequency (how often a data value occurs) is represented by the number of dots above each data value.
For example, in this dot plot, there are 3 dots above the data value 21 °C and so this means that there are three of this particular data value in the set of data.
To find the mean, we need to multiply each data value by its frequency, add them up, then divide by the total frequency.
This set of data is presented as a <u>stem and leaf diagram</u>, where the units and tenths are split. The units column is the 'stem' and the tenths become the 'leaf'.
Therefore, the first row of this stem and leaf diagram represents 2 data values: 4.3 and 4.8
To find the mean, sum the data values, then divide by the total frequency.
To find the total frequency, simply count the number of values in the leaf part of the diagram.
Data values = 4.3, 4.8, 5.1, 5.1, 5.2, 5.5, 5.7, 6.6, 6.9, 7.3, 7.4
Total frequency = 11
Answer:
The next three terms of the sequence are 17, 21 and 25.
The 300th term of the sequence is 1197.
Step-by-step explanation:
The statement describes an arithmetic progression, which is defined by following formula:
(1)
Where:
- First element of the sequence.
- Progression rate.
- Index of the n-th element of the sequence.
- n-th element of the series.
If we know that ,
and
, then the progression rate is:
The set of elements of the series are described by .
Lastly, if we know that , then the 300th term of the sequence is:
And the next three terms of the sequence are:
n = 5
n = 6
n = 7
The next three terms of the sequence are 17, 21 and 25.
The 300th term of the sequence is 1197.