Alex invests £4000 for 7 years. his investment pays compound interest of x% per annum. at the end of the 7 years alex’s investment is worth £5263.73 work out the value of x

 x=4% i.e.

Rate of interest = 4% per annum.

Step-by-step explanation:

Since we have given that

Amount Alex invested = £4000

Number of years = 7

Rate of interest = x%

Amount she received at the end of 7 years = £5263.73

We will use " Compound Interest " formula :

Hence, x=4% i.e.

Rate of interest = 4% per annum.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

don't report but were is the digram

step-by-step explanation: