exam Maths Puzzle Numerical Ability

Suppose X ~(10,5).

P(X greater than or equal too 15)
P(0 less than or equal to X less than or equal to 20)
P(|X| < 12)

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exam Other Question

What is the graph of x=-4? Instead of spending his additional earnings each month, Michael chooses to open a savings account offering 3% interest, accured monthly. Calculate the amount of money Michael iwll