Find the gradient of the line joining the points P(2,5) and Q(4,-2).
1 answer:
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Answer:
Step-by-step explanation:
Given:
Solving (a): P(x < 810)
To solve this, we make use of:
Because
So:
Hence:
Solving (b): P(x < 800)
To solve this, we make use of:
Because:
So:
Solving (c): P(x > 808.40)
Here, we make use of complement rule:
Where:
So:
Solving (d) The probability that the temperature lies outside 805.60 and 808.40
First, we calculate the probability that it lies within.
This is represented as:
This is calculated using:
Using complement rule, the required probability is: