19. According to Pricewaterhouse Coopers, \"Global State of Information System S

Question

19. According to Pricewaterhouse Coopers, "Global State of Information System Security 2015", there were 3.4 million "detected and reported information security incident (cyberattacks, etc.) against computer networks in the USA in 2009. In 2014, that number had risen to 42.8 million. (a) Which of the following linear equations could be used to predict annual number (in millions) of detected and reported information security incidents "" in a given year "x" where x-O represents the year 2009? Explain/show work. A. y = 0.13x + 2009 B. y = 0.13x + 3.4 C. y = 7.88x + 2009 D. y = 7.88x + 3.4 (b) Use the equation from part (a) to predict the number (in millions) of detected and reported information security incidents in the year 2017. Round answer to nearest tenth of a million. Show work (c) Fill in the blanks to interpret the slope of the equation: The rate of change of detected and reported information security incidents against computer networks in the US with respect to time isper (Include units of measurement.) 20, Bank A pays 5% compounded daily, while Bank B pays 5.12% compounded monthly. Which bank pays more? Explain. Show work

Explanation / Answer

19)

a)

Consider Option- (D)

y = 7.88x+3.4

When x=0; Year=2009 and y= 0+3.4 = 3.4 million

When x=5; Year=2014 and y= 39.4+3.4 = 42.8 million

So, that will be the answer

b)

In Year=2017, x=8

Then, y= 7.88*8 + 3.4 = 66.44 million

c)

Slope = 7.88 per million

20)

Let P be principal

Amount in plan-1 is A = P(1 + 0.05/365) ^ 365 = 1.0512P

Amount in plan-2 is A= P(1+ 0.0512/12) ^12 = 1.0524P

Interest is more in plan 2

Hope this helps and Please don't forget to rate the answer :)

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