It would take an hour and 40 minutes because you times 250 by 100
Z = (X-Mean)/SD
<span>z1 = (165 - 150)/15 = +1 </span>
<span>z2 = (135 - 150)/15 = - 1 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean +/- 1SD covers 68% of the values </span>
<span>100% - 68% = 32% </span>
<span>The remaining 32% is equally distributed below z = - 1 and z = +1 </span>
<span>32%/2 = 16%
</span>
<span>Therefore,
</span>
<span>a) Number of men weighing more than 165 pounds = 16% of 1000 = 160 </span>
<span>b) Number of men weighing less than 135 pounds = 16% of 1000 = 160</span>
Answer:
The correct option is C. weight of sugar
So we can only measure Weight of Sugar.
Step-by-step explanation:
Balance Scale:
- It is a device for weighing.
- It has a balanced beam and two pans.
- When the pans contain exactly the same mass, the beam is in balance condition.
- You can place an object in one pan and standard weights in the other to find what the object weighs.
So we can only measure Weight of Sugar.
Some of the sub-questions have been answered. I will provide explanation to the already answered questions and then answer the unanswered parts
1. The graph type
The three graph displayed are stem-and-leaf plots. The single numbers at the left-hand side are referred to as the stem, while the numbers at the right are called leaves.
2. The type of data
The three graphs display numerical data (i.e. numbers). Hence, the data are quantitative
3. The correct graph
To know the correct graph; the leaves on each line must be in ascending order and the delimiter to use is a blank space.
Only graph A obey the above illustration
4. Skewness
In graph A, the length of the leaves increases as we move from one stem to the other. This means that the graph is negatively skewed.
For a negative skewed stem plot, the mean is less than the median
5. The population size
This means that we count the number of leaves in the stem plot
The leaves are:
So, the population size is: 19
6. The data set
To do this, we include the stem to the corresponding leaves.
So, we have:
The necklace chain costs $15, so subtract 15 from the total cost of $28.75.
28.75 - 15 = $13.75
Then, to find the amount of beads you divide the remaining amount by the cost of the beads.
13.75 ÷ 2.75 = 5
Therefore, you bought 5 beads.
