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Nimfa-mama [501]

2 years ago

15

Why does the PCI require banks to protect customers’ card data?

2 answers:

hammer [34]2 years ago

5 0

Answer:

D. to protect consumers from online fraud and theft

Step-by-step explanation:

The point of protection of personal identifying and financial data is to prevent fraud and theft.

___

The reason why hackers and malware attack banks is to get to data that would enable fraud and theft. "Good practices" prevent such data compromise, so protecting customers from fraud and theft.

leonid [27]2 years ago

5 0

Answer:

Why does the PCI require banks to protect customers’ card data?

<em><u>A. </u></em>

<em><u>to protect banks from hackers and malware </u></em>

B.

to help improve the cyber community

C.

to establish good practices in the banking community

D.

to protect consumers from online fraud and theft

Step-by-step explanation:

#platofam

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Suppose a baker claims that the average bread height is more than 15cm. Several of this customers do not believe him. To persuad

laila [671]

Answer:

$17-2.262\frac{1.9}{\sqrt{10}}=15.641$

$17+2.262\frac{1.9}{\sqrt{10}}=18.359$

So on this case the 95% confidence interval would be given by (15.641;18.359)

And since the lower limit for the confidence interval is higher than 15 we can conclude that at 5% of significance the true mean is higher than 15 cm

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=17$ represent the sample mean

$\mu$ population mean (variable of interest)

s=1.9 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=10-1=9$

Since the Confidence is 0.95 or 95%, the value of $\alpha=0.05$ and $\alpha/2 =0.025$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that $t_{\alpha/2}=2.262$

Now we have everything in order to replace into formula (1):

$17-2.262\frac{1.9}{\sqrt{10}}=15.641$

$17+2.262\frac{1.9}{\sqrt{10}}=18.359$

So on this case the 95% confidence interval would be given by (15.641;18.359)

And since the lower limit for the confidence interval is higher than 15 we can conclude that at 5% of significance the true mean is higher than 15 cm

4 0

3 years ago

A water container holds 2 liters. How many

EastWind [94]

Number of containers for 2 litres of water = 1

So, number of containers for 1 litre of water = ½

So, number of containers for 30 litres of water

= ½ × 30

= 30/2

= 15

So, 15 of these containers would be needed to fill a 30-liter drum.

5 0

3 years ago

Read 2 more answers

0÷2 answer right now 0÷2= right now

77julia77 [94]

0/2=0 because anything divided by zero is zero.

4 0

3 years ago

Read 2 more answers

77%<br> Calculate the area of this triangle.<br> 14 cm<br> 11 cmi<br> 18 cm

RideAnS [48]

Answer:

A = 99 cm²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

Here b = 18 and h = 11 , then

A = $\frac{1}{2}$ × 18 × 11 = 9 × 11 = 99 cm²

4 0

2 years ago

Simplify -|-7 + 4|.<br><br> -11<br> -3<br> 3<br> 11

myrzilka [38]

|a| = -a for a < 0

|a| = a for a ≥ 0

examples:

|-1| = -(-1) = 1; |-4| = -(-4) = 4; |-0.1| = 0.1; |-109| = 109

|7| = 7; |19| = 19; |0| = 0

- |-7 + 4| = - |-3| = - (3) = -3

Answer: -|-7 + 4| = -3

3 0

3 years ago

Read 2 more answers