1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
3 years ago
12

According to some study, the height for Northern European adult males is normally distributed with an average of 181 centimeter

and a standard deviation of 7.3 centimeter. Suppose such an adult male is randomly chosen. Let X be height of that person. The next 2 questions correspond to this information. The answer may be rounded up to 3 decimal places of the actual value.
a) The probability that the person is between 160 and 170 centimeters is

b) The probability that the person is higher than 190 centimeter is

Please state how you determined the probability from the standard normal table.
Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

0.0635,0.1093

Step-by-step explanation:

Given that according to some study, the height for Northern European adult males is normally distributed with an average of 181 centimeter and a standard deviation of 7.3 centimeter.

Suppose such an adult male is randomly chosen.

Let X be height of that person.

X is N*(171,7.3)

a) The probability that the person is between 160 and 170 centimeters is

=P(160

Take any std normal table where prob are given from 0 to 3

Since symmetrical we take the prob for 1.51 and 2.88 and find the difference

= 0.4980-0.4345

=0.0635

b) The probability that the person is higher than 190 centimeter is

=P(X>190)\\= P(Z>1.23)

= 0.5-value corresponding to 1.23

= 0.5-0.3907

=0.1093

You might be interested in
On Wednesday afternoons, eight men play tennis on two courts. They know ahead of time which four will play on the north court an
musickatia [10]

Answer:

(A)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Need help finding the answer.
Bingel [31]

Answer:

angle 2= 52.7° (same as angle 4)

angle 1 and angle 3 = 127.3°

8 0
2 years ago
If p and q are both true, then which of the following statements has the same truth-value as ~p → q?
olganol [36]

If p and q are both true, then

\neg p \implies q

is an implication of the form

F \implies T

which is true, because every implication starting with false is true, i.e.

F \implies T = T,\quad F \implies F = T

So, we're looking for an expression evaluating to true. Let's see what we have:

A) is an AND proposition. Logical AND is true only if both parts are true. So, you have

\neg P \land \neg Q = F \land F = F

So it's not the right option.

B) is an OR proposition. Logical OR is true whenever one of the two parts is true. So, you have

\neg P \lor\neg Q = F \lor F = F

So it's not the right option.

C) is again an AND proposition. You have

P \land \neg Q = T \land F = F

So this is not the right option.

D) Finally, the last one is again an implication, and again it starts with false:

\neg Q \implies P = F \implies T = T

So this is true, and thus is the correct option.

8 0
3 years ago
Evaluate the expression 6/5x when x=20
Sindrei [870]

Answer:

24

Step-by-step explanation:

6 divided by 5 times 20 =24

6/5*20= 24

7 0
2 years ago
Help help help help please
kykrilka [37]

Answer:

b

Step-by-step explanation:

b is the right answer

it is

sure

8 0
3 years ago
Other questions:
  • Solve the equation.<br> 8 – 2x = -8х + 14<br> A) x= -1<br> B) x= -3/5<br> C) x= 3/5<br> D) x= 1
    15·2 answers
  • HeLp with math pls!!!!
    12·1 answer
  • Simplify. Assume that no denominator is equal to zero. (2a/a^2) ^-3
    6·1 answer
  • ,jh.g,;jhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    5·2 answers
  • The area of the rectangular floor in Tamara's room is 95 5/6 square
    5·2 answers
  • (2x + 4) — (-x + 5)<br> PLEASE HELP
    13·1 answer
  • Solve the equation and check your solution. (If an answer does not exist, enter DNE. If all real numbers are solutions, enter RE
    9·1 answer
  • A 2-column table with 5 rows. Column 1 has entries x, x, x, x, Total 100 percent. Column 2 has entries 5 dollars, 5 dollars, 5 d
    5·2 answers
  • If f(x) =2x-1 and g(x)=x^2-3x-2 find (f +g) (x)
    14·2 answers
  • I gotta answer this but I don’t want to be wrong
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!