The answer is 27/4 Decimal Form: 6.75
Answer:
There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.
Explanation:
Ozone is a gas normally found in stratosphere, where it protects us from solar radiation. However, under certain circumstances, it can be formed on the ground level.
Conditions that have to be met in order for this to happen are existing of nitrogen oxides and volatile organic compounds (VOC) (both formed from the factories, industry and transport) and their reaction catalyzed by heat and light.
During dark, cold and cloudy days, due to the lack of heat and light from the Sun, formation of ozone will be decreased.
Also, this will enable building up of nitrogen dioxide, due to the same reason, leading to increased concentration.
Since we are given that
the mean is 15.2 oz
standard deviation of 0.5 oz
and simple random sample of 7
then we have an
<span>Exact normal distribution with mu equal to 15.2 and sigma equal to 0.4
since the samples are simple and random</span>
It is a circle with a ring around it