Question

How many 4 digit PINs have two 1s but you don’t know where?

(Please explain step by step)

Answer #1

How many 4 digit PINs have two 1s but you don’t know where?

How many 4 digit pins have two 1's but you dont know
where?

How
many seven-digit numbers are even and have a 3 in the hundreds
place?
Please explain this and how to understand the basic concept
about this? step by step would be good too and with examples if you
can. appreciate this. thank you.

Hi, I don’t know how to solve? What would be the explanation?
Can you please solve for me using step by step? Thank you! ??
The correlation between two variables A and B is .25 with a p-
value of .08. What can we conclude?

Hi, I don’t know how to solve this problem. Can you solve for me
step by step... ? Thank you ?
The correlation between two variables A and B is .05 with a
p-value of .001. What can we conclude?
I am guessing that the correlation between A and B is not
significant because B is so small (.001.) ? Am I right?

Suppose you have totally forgotten a 5-digit PIN to open a door
locker. There are five distinct digits in the PIN, excluding zero.
(a) If you test one 5-digit PIN every 11 seconds, how many minutes
will it take to test all possible PINs? Answer =Answer [2 marks]
(b) If the system requires you to press the first two digits
simultaneously and then the other three digits one at a time a. How
many possible PINs can you enter? Answer...

***Can you please explain step by step on how to do this
question*** and please show formulas used so i can understand how
to do it on my own. thank you.
The cash prices of six-month and one-year Treasury bills are
94.0 and 89.0. A 1.5-year bond that will pay coupons of $4 every
six months currently sells for $94.84. A two-year bond that will
pay coupons of $5 every six months currently sells for $97.12.
Calculate the six-month, one-year,...

Please explain carefully step by step.
So you can retire early, you have decided to start saving $500 a
month starting one month from now. You plan to retire as soon as
you can accumulate $1 million. If you can earn 5 percent (per year)
on your savings, how many years will it be before you can
retire?

How many diffrent two-digit numbers can you use the
digits 4,3,7,1,2,6, and 9 without repetition? For example, 77 is
not allowed
The number of diffrent two-digit number is

2. How you will know the hardness of minerals. Let say you have
two minerals and you want to know their harness, so what are the
possible methods that you will use. Please explain.

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