Answer:
Option A
Step-by-step explanation:
22+(-32) is the same thing as 22-32.
<h3>Let's see if the given options are equal:</h3>
Option A:
Option A's expression has the same value as the expression given.
Option B:
22+(22)+(-10)
Option B's expression does not have the same value as the expression given.
Option C:
Option C's expression does not have the same value as the expression given.
Option D:
Option D's expression does not have the same value as the expression given.
<h3>The correct answer should be A: 22+(-22)+(-10).</h3>
Answer:
mean=4.44
standard deviation=1.67
Step-by-step explanation:
The mean and standard deviation for the number of erroneous returns per batch can be calculated using binomial distribution. The binomial distribution is used because
i) There are one of two possible outcomes( error or no error) that can be categorized into success and failure.
ii) The experiment is repeated fix number of times 12.
iii) The probability of success remains constant at each trial i.e. 37%
iv) The trails are independent.The mean and standard deviation of binomial distribution are np and √npq
Here, n=12, p=0.37 and q=1-0.37=0.63
mean=12*0.37=4.44
standard deviation=√12*0.37*0.63=√2.8=1.67
R - 18 = 50
r = 50 + 18 = 68
Hence Rick is 68 yrs old
Answer: $308
Step-by-step explanation:
Based on the information given in the question, the account balance of Ms. Smith at the end of June will be:
= $8118 + $710 - $1211 + $809
= $8426
Therefore, the difference in her account balance than it was on April 1st will be:
= $8426 - $8118
= $308
