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fiasKO [112]
2 years ago
5

A bank Certificate of Deposit is a: a Cash deposit in a savings account that earns interest b Certificate for deposits that are

issued for half the face value c Savings instrument that requires a deposit for a period of time during which there is a penalty for withdrawals d Savings instrument that requires a deposit for a period of time during which the saver can withdraw money from the plan at any time without a penalty
Mathematics
1 answer:
LuckyWell [14K]2 years ago
5 0

Answer:

C. Savings instrument that requires a desposit for a period of time during which there is a penalty for withdrawals.

Step-by-step explanation:

A Certificate of Deposit is a financial savings product offered by banks. A Certificate of Deposit, also known as a CD, can be obtained from a bank or a credit union.

CDs have a greater interest rate return than savings accounts due the conditions that savings from a CD cannot be withrawn for a fixed period of time. The higher the return the longer the period the savings cannot be withdrawn or the higher the intital investment.

CDs are insured by the Federal Deposit Insurance Corporation (FDIC) and if savings are not needed for a known period of time offer a better return than a savings account.

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Read 2 more answers
A population has a mean of 180 and a standard deviation of 24. A sample of 100 observations will be taken. The probability that
jeka94

Answer:

The probability that the mean from that sample will be between 183 and 186 is 0.0994 = 9.94%.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

A population has a mean of 180 and a standard deviation of 24.

This means that \mu = 180, \sigma = 24

A sample of 100 observations will be taken.

This means that n = 100, s = \frac{24}{\sqrt{100}} = 2.4

The probability that the mean from that sample will be between 183 and 186 is:

This is the pvalue of Z when X = 186 subtracted by the pvalue of Z when X = 183. So

X = 186

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{186 - 180}{2.4}

Z = 2.5

Z = 2.5 has a pvalue of 0.9938

X = 183

Z = \frac{X - \mu}{s}

Z = \frac{183 - 180}{2.4}

Z = 1.25

Z = 1.25 has a pvalue of 0.8944

0.9938 - 0.8944 = 0.0994

The probability that the mean from that sample will be between 183 and 186 is 0.0994 = 9.94%.

8 0
3 years ago
What is the rational exponent expression of f^4
Dennis_Churaev [7]
One may note that any number can be written as over 1, or 2 is 2/1 or 1,000 is 1,000/1 and so on

thus \bf f^4\iff f^{\frac{4}{1}}
4 0
3 years ago
Jeremy swims 5 3··5 kilometers in a 7-day period. He swims the same distance each day. What distance does he swim in a day?
jeka94

Answer:

Jeremy swims 4/5 of a kilometer each day.

Step-by-step explanation:

Since 5 3/5 can be turned into 28/5, then divided by 7/1, you will get 4/5. So Jeremy swims 4/5 of a kilometer each day.

Eli got his answer by multipying 5 3/5 by 7 which was an incorrect process.

7 0
2 years ago
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