Random Number Generator

[SercoSteveB]

Which of the following are possible values of Numeric Value Out following execution of the VI?

NOTE: Multiple answers may apply.

a) -0.213

b) 0

c) 4.5321

d) 10.203

[nik35324]

The output of for loop is between 0 and 10 and so the min and max. Subtracting min from max is between 0 and 10. Options A and D can be eliminated.

Answer: B (Unlikely) and C for sure.

Any insights about option B?

[Hritzgujarati]

Answer is clear.....! C Random number generator will not generate the same number twice in a raw. so there is no chance of generating 10 same number in a raw, So B is not an answer.

[crossrulz]

B, C

Few comments:

1. The loop cannot output a 10 since the Random Number is not inclusive of 1

2. 0 is technically possible, but the chances are really close to 0.  To be more technical (if I am remembering basic statistic properly), the chances of a number is 1/(2^64).  Now 2 numbers being exactly the same is 1/(2^128).  Now the chances of 10 numbers being the same would be 1/(2^640) = 5.42e-20.

[MrStevenUND]

B, C.  However B is highly unlikely...

[CataM]

b) and c)

[Matt-A.]

Agree.  B unlikely, and C is possible

[jeeva89]

C & D is possible

[Hritzgujarati]

Jeeva could you please elaborate your answer

[Mr._Sri_logeshwaran]

C is the Ans. Since Random numbers will generate 0-1 so multiples of 10 will give upto 0-10 values. Also if we subtract Max with Min we will get values 10 or less than 10 so Ans is C

[Timsrice]

C
A& D are impossible
(and it is not worth waiting for B!)

interesting discussions above on how unusual it would be to generate a zero with this.

...so, put the snippet in a loop, ran it a million times (because you can) and then simply put the all answers generated on a histogram...
So with 10 random numbers in the range 0-10 they stand to be reasonably evenly spread out, so values (amplitude) around 8 and 9 are common.

In one million attempts the lowest value generated was 1.5,

Which I think demonstrates the validity of the statements above that the chances of getting zero are astonishingly small.  

What I hadn't appreciated is how very unlikely it is to get a number below 1.

[alexderjuengere]

my gut feeling was C

@ Timsrice:

...so, put the snippet in a loop, ran it a million times (because you can) and then simply put the all answers generated on a histogram

I was about to do that  ^^

kudos to you!

[jwscs]

B (extremely unlikely, bc all array elems would have to be the same)

and C

not A, because x-z for x>=z can never be negative

not D, because 1*10 is the maximum (after looking up the help on random, this is exclusive, bc random never produces a 1)

[SercoSteveB]

Answer: B & C, nice one all. 

Lots of good stuff in this post, thanks.

[levonsg]

B,C