function calculateSums() {
    const a = parseFloat(document.getElementById('a').value) || 0;
    const b = parseFloat(document.getElementById('b').value) || 0;
    const c = parseFloat(document.getElementById('c').value) || 0;
    const d = parseFloat(document.getElementById('d').value) || 0;
    let k;

    document.getElementById('e').value = a + b;
    document.getElementById('f').value = c + d;
    document.getElementById('g').value = a + c;
    document.getElementById('h').value = b + d;
    const n = (a + b) + (c + d);
    document.getElementById('n').value = n;

    if (a === 0 || b === 0 || c === 0 || d === 0) {
        k = ((b + 0.5) / (a + 0.5)) / ((d + 0.5) / (c + 0.5));
    } else {
        k = (b / a) / (d / c);
    }
    const result1 = (k - 1) * 100;
    document.getElementById('result1').textContent = result1.toFixed(2);

    const e = a + b;
    const f = c + d;
    const g = a + c;
    const h = b + d;

    const chisq = (((a * d - b * c) - n / 2) ** 2 * n) / (e * f * g * h);
    
    const pValue = jStat.chisquare.cdf(chisq, 1); 

    const result2 = (pValue * 100).toFixed(2) + "%";

    document.getElementById('result2').textContent = result2;
}

document.querySelectorAll('input[type="number"]').forEach(input => {
    input.addEventListener('input', calculateSums);
});