Which normal distribution has a wider spread: the one with mean 3 and standard deviation 4 or the one with mean 4 and standard deviation 3 ? the normal distribution with mean 4 and standard deviation 3 has the wider spread?

The correct option is 1. The normal distribution with mean 3 and standard deviation 4 has a wider spread.

Step-by-step explanation:

Normal distribution is defined by two variables, mean and standard deviation.

The spread of a normal distribution is not dependent on mean, it is completely dependent of standard deviation. Larger standard deviation means wider spread.

It is given that first normal distribution has

Second normal distribution has

Since , therefore the normal distribution with mean 3 and standard deviation 4 has a wider spread.

Hence the correct option is 1.

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

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step-by-step explanation: