The area between two Z-scores is the area of the normal distribution that lies between two Z-scores. It is calculated by subtracting the lower Z-score from the higher Z-score and then finding the area under the normal curve for the difference. This area can be used to calculate probabilities associated with normal distributions.
@import url(‘https://fonts.googleapis.com/css?family=Droid+Serif|Raleway’);
.axis–y .domain {
display: none;
}
h1 {
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font-family: ‘Raleway’, sans-serif;
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h2 {
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text-align: center;
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margin-top: 15px;
font-family: ‘Raleway’, sans-serif;
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p {
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font-family: ‘Raleway’, sans-serif;
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#words {
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#calcTitle {
text-align: center;
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margin-bottom: 0px;
font-family: ‘Raleway’, serif;
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#hr_top {
width: 30%;
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border: none;
height: 2px;
color: black;
background-color: black;
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#hr_bottom {
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border: none;
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.input_label_calc {
display: inline-block;
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#button_calc {
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padding: 10px 10px;
cursor: pointer;
outline: none;
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color: black;
font-family: ‘Work Sans’, sans-serif;
border: 1px solid grey;
/* Green */
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#button_calc:hover {
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.label_radio {
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Area: 0.42122
function calc() {
//get input values
var z1 = document.getElementById(‘z1’).value*1;
var z2 = document.getElementById(‘z2’).value*1;
var area = 1;
//find z-score
if (z1<z2) {
area = jStat.normal.cdf(z2, 0, 1 ) – jStat.normal.cdf(z1, 0, 1 );
} else {
area = jStat.normal.cdf(z1, 0, 1 ) – jStat.normal.cdf(z2, 0, 1 );
}
//output
document.getElementById('area').innerHTML = area.toFixed(5);
}