Answer:
Step-by-step explanation:
Given that Samuel Morse suggested in the nineteenth century that the letter "t" made up 9% of the English language. we can assume this is still correct.
Sample size n =1000
Assuming right we find no of t's would be binomial with p = 0.09
a) Expected sample percentage = 9%
b) Standard error =
Expected numbers in 1000 letters book
=
The next term would be -27
Lets pretend that all the negative signs went away, that way you have the data:
2, 5, 9, 14, 20
^^^In my opinion it just makes it easier because I don't like negative numbers. Keep in mind that the negatives are still there but I just made them "Invisible"
The pic below is how I found the pattern. If you can't tell by the picture from 2 to 5 it increases by 3. From 5 to 9 it increases by 4. From 9 to 14 it increases by 5. From 14 to 20 it increases by 6.
This means the pattern is to increase the number 1 more then the amount the previous number was increased (keep in mind this is the pattern for the positive version and therefore the original pattern would be decreasing (since the bigger a number that is negative is, the farther away it gets from zero, therefor getting smaller.) For the original version the rule would be: it would decrease the number 1 more then the amount the previous number was decreased) <<<Hope that makes sense
That means that 20 will be increased by 7 ( 6+ 1 = 7). Which equals 27. Make the negative sign visible again and your answer is -27.
Let me know if this made sense and if it was helpful!
18 plus 22 is 40 so it is equivalent to 21 plus 19
Hey I can’t do everything cause I need to help my mum so I’ll do as much as I can so 1). -16
2). -25
3). 1
4). 4
All you need to do is get a calculator and find out how fast they can run by putting the equation given