I guess that u = μ & that a=σ. If so:
μ =100 & that σ =20 & x=20
Z score = (x-μ) / σ ==> Z score = (90-100)/20 ==> Z = - 0.5
9 million and 9 hundred thousand
9,000,000
and 900,000
Answer:the mode is b
Step-by-step explanation:
B
Is there more to questions. you can solve it with little info
