1. The grades on a chemistry midterm at Springer are roughlysymmetric with ?=67 and ?=2.0. William scored 66on the exam.
- Find the z-score for William's exam grade. Round to twodecimal places.
- What percentage of students in this midterm scored lessthan William?
- What percentage of students scored more than 70 in thismidterm?
2. The grades on a language midterm at Oak are roughly symmetricwith ?=67 and ?=2.5. Ishaan scored 70 on theexam.
- Find the z-score for Ishaan's exam grade. Round to twodecimal places.
- What percentage of students in this midterm scored lessthan Ishaan?
- What percentage of students scored more than 70 in thismidterm?
3. The grades on a math midterm at Springer are roughlysymmetric with ?=78 and ?=5.0. Omar scored 70 onthe exam.
- Find the z-score for Omar's exam grade. Round to twodecimal places.
- What percentage of students in this midterm scored lessthan Omar?
- What percentage of students scored more than 80 in thismidterm?
- What percentage of students scored between 70 and 90 inthis midterm?
4. The grades on a geometry midterm at Springer are roughlysymmetric with ?=68 and ?=2.0. Emily scored 69 onthe exam.
- Find the z-score for Emily's exam grade. Round to twodecimal places.
- What percentage of students in this midterm scored lessthan Emily?
- What percentage of students scored more than 75 in thismidterm?
- What percentage of students scored between 65 and 75 inthis midterm?
